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FA-35696 / Tab interfaces / Open access

Restore conflicts: merged order · case 01

The tab workspace reports an incorrect merged order.

Verified by executionVariant 1 · 7 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

The merged order decision uses x['saved']+x['open'] instead of x['open']+[t for t in x['saved'] if t not in x['open'] and t not in x['missing']].

THE FAILURE

The merged order decision uses x['saved']+x['open'] instead of x['open']+[t for t in x['saved'] if t not in x['open'] and t not in x['missing']].

Unsuccessful approach: The partial repair x['open']+[t for t in x['saved'] if t not in x['missing']] still violates a workspace boundary or normal case.

Case contract

Restore saved tabs after already-open tabs, deduplicating by document identity and keeping current edits, current active view and only available saved files.

Why this case matters

Offline tab/panel workspace behavior; no browser or desktop framework is emulated.

1 / The failure

Exit 1
"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    r0 = [t for t in x['saved'] if t not in x['open'] and t not in x['missing']]
    r1 = x['open']
    r2 = [t for t in x['saved'] if t in x['missing']]
    r3 = x['current']
    r4 = [t for t in x['saved'] if t in x['open'] and t in x['edited']]
    r5 = x['saved']+x['open']
    return [r0,r1,r2,r3,r4,r5]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = {1: [({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]), ({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a'], [], 'b', ['a'], ['b', 'a', 'c', 'd']]), ({'open': ['b', 'a'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]), ({'open': ['a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a'], ['d'], 'a', ['a'], ['a', 'c']]), ({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a'], ['d'], 'b', [], ['b', 'a', 'c']]), ({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]), ({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a'], ['d'], 'a', ['a'], ['b', 'a', 'c']])], 2: [({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'c']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a', 'extra0'], [], 'b', ['a'], ['b', 'a', 'extra0', 'c', 'd']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'c']]), ({'open': ['a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a', 'extra0'], ['d'], 'a', ['a'], ['a', 'extra0', 'c']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a', 'extra0'], ['d'], 'b', [], ['b', 'a', 'extra0', 'c']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'c']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0'], ['d'], 'a', ['a'], ['b', 'a', 'extra0', 'c']])], 3: [({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a', 'extra0', 'extra1'], [], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'c', 'd']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'c']]), ({'open': ['a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a', 'extra0', 'extra1'], ['d'], 'a', ['a'], ['a', 'extra0', 'extra1', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'b', [], ['b', 'a', 'extra0', 'extra1', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'a', ['a'], ['b', 'a', 'extra0', 'extra1', 'c']])], 4: [({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a', 'extra0', 'extra1', 'extra2'], [], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c', 'd']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a', 'extra0', 'extra1', 'extra2'], ['d'], 'a', ['a'], ['a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'b', [], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'a', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']])], 5: [({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], [], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c', 'd']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'a', ['a'], ['a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'b', [], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'a', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']])]}
for i, (inputs, expected) in enumerate(fixtures[N]):
    check("workspace regression "+str(i), solve(inputs), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
Boundary fixtureActualExpectedOutcome
workspace regression 0[['c'], ['b', 'a'], ['d'], 'b', ['a'], ['a', 'c', 'd', 'b', 'a']][['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]Failed
workspace regression 1[['c', 'd'], ['b', 'a'], [], 'b', ['a'], ['a', 'c', 'd', 'b', 'a']][['c', 'd'], ['b', 'a'], [], 'b', ['a'], ['b', 'a', 'c', 'd']]Failed
workspace regression 2[['c'], ['b', 'a'], ['d'], 'b', ['a'], ['d', 'c', 'a', 'b', 'a']][['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]Failed
workspace regression 3[['c'], ['a'], ['d'], 'a', ['a'], ['a', 'c', 'd', 'a']][['c'], ['a'], ['d'], 'a', ['a'], ['a', 'c']]Failed
workspace regression 4[['c'], ['b', 'a'], ['d'], 'b', [], ['a', 'c', 'd', 'b', 'a']][['c'], ['b', 'a'], ['d'], 'b', [], ['b', 'a', 'c']]Failed
workspace regression 5[['c'], ['b', 'a'], ['d'], 'b', ['a'], ['a', 'c', 'd', 'b', 'a']][['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]Failed
workspace regression 6[['c'], ['b', 'a'], ['d'], 'a', ['a'], ['a', 'c', 'd', 'b', 'a']][['c'], ['b', 'a'], ['d'], 'a', ['a'], ['b', 'a', 'c']]Failed

SHA-256 / 846100271f73e356d504bc0ba5e2af61f86ec8cc26bbded94f0d7aca98d68f85

2 / The unsuccessful fix

Exit 1
"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    r0 = [t for t in x['saved'] if t not in x['open'] and t not in x['missing']]
    r1 = x['open']
    r2 = [t for t in x['saved'] if t in x['missing']]
    r3 = x['current']
    r4 = [t for t in x['saved'] if t in x['open'] and t in x['edited']]
    r5 = x['open']+[t for t in x['saved'] if t not in x['missing']]
    return [r0,r1,r2,r3,r4,r5]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = {1: [({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]), ({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a'], [], 'b', ['a'], ['b', 'a', 'c', 'd']]), ({'open': ['b', 'a'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]), ({'open': ['a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a'], ['d'], 'a', ['a'], ['a', 'c']]), ({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a'], ['d'], 'b', [], ['b', 'a', 'c']]), ({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]), ({'open': ['b', 'a'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a'], ['d'], 'a', ['a'], ['b', 'a', 'c']])], 2: [({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'c']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a', 'extra0'], [], 'b', ['a'], ['b', 'a', 'extra0', 'c', 'd']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'c']]), ({'open': ['a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a', 'extra0'], ['d'], 'a', ['a'], ['a', 'extra0', 'c']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a', 'extra0'], ['d'], 'b', [], ['b', 'a', 'extra0', 'c']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'c']]), ({'open': ['b', 'a', 'extra0'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0'], ['d'], 'a', ['a'], ['b', 'a', 'extra0', 'c']])], 3: [({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a', 'extra0', 'extra1'], [], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'c', 'd']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'c']]), ({'open': ['a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a', 'extra0', 'extra1'], ['d'], 'a', ['a'], ['a', 'extra0', 'extra1', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'b', [], ['b', 'a', 'extra0', 'extra1', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1'], ['d'], 'a', ['a'], ['b', 'a', 'extra0', 'extra1', 'c']])], 4: [({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a', 'extra0', 'extra1', 'extra2'], [], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c', 'd']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a', 'extra0', 'extra1', 'extra2'], ['d'], 'a', ['a'], ['a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'b', [], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2'], ['d'], 'a', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'c']])], 5: [({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': [], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c', 'd'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], [], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c', 'd']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['d', 'c', 'a'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'a', ['a'], ['a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'c', 'edited': []}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'b', [], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'b', 'saved_active': 'd', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'b', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']]), ({'open': ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], 'saved': ['a', 'c', 'd'], 'missing': ['d'], 'current': 'a', 'saved_active': 'c', 'edited': ['a']}, [['c'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3'], ['d'], 'a', ['a'], ['b', 'a', 'extra0', 'extra1', 'extra2', 'extra3', 'c']])]}
for i, (inputs, expected) in enumerate(fixtures[N]):
    check("workspace regression "+str(i), solve(inputs), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
Boundary fixtureActualExpectedOutcome
workspace regression 0[['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'a', 'c']][['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]Failed
workspace regression 1[['c', 'd'], ['b', 'a'], [], 'b', ['a'], ['b', 'a', 'a', 'c', 'd']][['c', 'd'], ['b', 'a'], [], 'b', ['a'], ['b', 'a', 'c', 'd']]Failed
workspace regression 2[['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c', 'a']][['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]Failed
workspace regression 3[['c'], ['a'], ['d'], 'a', ['a'], ['a', 'a', 'c']][['c'], ['a'], ['d'], 'a', ['a'], ['a', 'c']]Failed
workspace regression 4[['c'], ['b', 'a'], ['d'], 'b', [], ['b', 'a', 'a', 'c']][['c'], ['b', 'a'], ['d'], 'b', [], ['b', 'a', 'c']]Failed
workspace regression 5[['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'a', 'c']][['c'], ['b', 'a'], ['d'], 'b', ['a'], ['b', 'a', 'c']]Failed
workspace regression 6[['c'], ['b', 'a'], ['d'], 'a', ['a'], ['b', 'a', 'a', 'c']][['c'], ['b', 'a'], ['d'], 'a', ['a'], ['b', 'a', 'c']]Failed

SHA-256 / bcfe29e45af0d78c0c587b09d9811fa360831fb1b4b597f449f03b84118de890

HELD IN THE MEMBER ARCHIVE

The verified repair and its recorded checks are member-only.

This mechanism has 7 recorded checks per implementation. The open-access tier publishes the failure and the unsuccessful fix; the repaired source that passes every check, and the observations that prove it, are available to members.

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Verification & scope

Finite stipulated workspace snapshots only. Independent result fields describe observable obligations, not a full UI runtime. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.

Observations recorded using Python 3.12.14 at 2026-09-29T14:42:44.136930+00:00.

Case digest / 36008608aea297f1cf2e5ba7b2c0fb82b4aac4757d35f3e9dbc4f8b842967208