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FA-50671 / Raster clipping / Open access

Damage history clip: resize incremental · case 01

Resize fails to mark newly allocated samples dirty.

Verified by executionVariant 1 · 11 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

Resize fails to mark newly allocated samples dirty.

THE FAILURE

Resize fails to mark newly allocated samples dirty.

Unsuccessful approach: Marking only grown samples misses replaced content when the target shrinks or remains the same size.

Case contract

Each frame begins with current damage and backbuffer age. Age zero requires full redraw; age k includes current damage and the last k-1 successfully presented frames. Failed presentation neither stores history nor clears accumulated damage. Bounds are applied before drawing; explicit full damage survives incremental additions.

Why this case matters

Raster clip state can leak coverage across draws even when every individual region is valid.

1 / The failure

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

N = 1
observations = []
def solve(commands, size):
    full=set(range(size))
    history=[]
    current=set()
    redraw=set()
    out=[]
    for cmd in commands:
        op=cmd[0]
        if op=='damage': current |= set(cmd[1]) & full
        elif op=='full': current=set(full)
        elif op=='begin':
            age=cmd[1]
            if age==0 or age-1>len(history): redraw=set(full)
            else:
                redraw=set(current)
                for old in history[:age-1]: redraw |= old
        elif op=='draw': out.append(sorted(redraw))
        elif op=='present':
            if cmd[1]:
                history.insert(0,set(current))
                history=history[:3]
                current.clear()
        elif op=='resize':
            full=set(range(cmd[1]))
            history=[]
            current=current & full
            redraw=set(full)
    return out
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
if N == 1:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 4), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 4), [[0, 1, 2, 3], [0, 1, 2, 3]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 4), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 4), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 4), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 4), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 4), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 4), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 4), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 4), [[0, 1, 2, 3]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 4), [[3]])
if N == 2:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 5), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 5), [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 5), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 5), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 5), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 5), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 5), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 5), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 5), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 5), [[0, 1, 2, 3, 4]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 5), [[3]])
if N == 3:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 6), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 6), [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 6), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 6), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 6), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 6), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 6), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 6), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 6), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 6), [[0, 1, 2, 3, 4, 5]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 6), [[3]])
if N == 4:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 7), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 7), [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 7), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 7), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 7), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 7), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 7), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 7), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 7), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 7), [[0, 1, 2, 3, 4, 5, 6]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 7), [[3]])
if N == 5:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 8), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 8), [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 8), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 8), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 8), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 8), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 8), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 8), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 8), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 8), [[0, 1, 2, 3, 4, 5, 6, 7]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 8), [[3]])
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
explicit sequence 0[[0, 1]][[0, 1]]Passed
explicit sequence 1[[0, 1, 2, 3], [0, 1, 2, 3]][[0, 1, 2, 3], [0, 1, 2, 3]]Passed
explicit sequence 2[[1, 2], [0, 1, 2]][[1, 2], [0, 1, 2]]Passed
explicit sequence 3[[0]][[0]]Passed
explicit sequence 4[[0]][[0]]Passed
explicit sequence 5[[]][[]]Passed
explicit sequence 6[[0, 1, 2]][[0, 1, 2]]Passed
explicit sequence 7[[]][[0, 1, 2]]Failed
explicit sequence 8[[2]][[2]]Passed
explicit sequence 9[[0, 1, 2, 3]][[0, 1, 2, 3]]Passed
explicit sequence 10[[3]][[3]]Passed

SHA-256 / 0ca3bfbd8cdeeb7b8b2735a201776ba2032d393eb388083d973c133e6ab2b540

2 / The unsuccessful fix

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

N = 1
observations = []
def solve(commands, size):
    full=set(range(size))
    history=[]
    current=set()
    redraw=set()
    out=[]
    for cmd in commands:
        op=cmd[0]
        if op=='damage': current |= set(cmd[1]) & full
        elif op=='full': current=set(full)
        elif op=='begin':
            age=cmd[1]
            if age==0 or age-1>len(history): redraw=set(full)
            else:
                redraw=set(current)
                for old in history[:age-1]: redraw |= old
        elif op=='draw': out.append(sorted(redraw))
        elif op=='present':
            if cmd[1]:
                history.insert(0,set(current))
                history=history[:3]
                current.clear()
        elif op=='resize':
            full=set(range(cmd[1]))
            history=[]
            current=current | (full-set(range(size)))
            redraw=set(full)
    return out
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
if N == 1:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 4), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 4), [[0, 1, 2, 3], [0, 1, 2, 3]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 4), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 4), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 4), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 4), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 4), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 4), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 4), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 4), [[0, 1, 2, 3]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 4), [[3]])
if N == 2:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 5), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 5), [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 5), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 5), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 5), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 5), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 5), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 5), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 5), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 5), [[0, 1, 2, 3, 4]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 5), [[3]])
if N == 3:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 6), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 6), [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 6), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 6), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 6), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 6), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 6), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 6), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 6), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 6), [[0, 1, 2, 3, 4, 5]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 6), [[3]])
if N == 4:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 7), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 7), [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 7), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 7), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 7), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 7), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 7), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 7), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 7), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 7), [[0, 1, 2, 3, 4, 5, 6]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 7), [[3]])
if N == 5:
    check('explicit sequence 0', solve([['damage', [0]], ['damage', [1]], ['begin', 1], ['draw']], 8), [[0, 1]])
    check('explicit sequence 1', solve([['damage', [0]], ['begin', 0], ['draw'], ['begin', 3], ['draw']], 8), [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]])
    check('explicit sequence 2', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['begin', 2], ['draw'], ['begin', 3], ['draw']], 8), [[1, 2], [0, 1, 2]])
    check('explicit sequence 3', solve([['damage', [0]], ['present', True], ['begin', 2], ['draw']], 8), [[0]])
    check('explicit sequence 4', solve([['damage', [0]], ['present', False], ['begin', 1], ['draw']], 8), [[0]])
    check('explicit sequence 5', solve([['damage', [0]], ['present', True], ['begin', 1], ['draw']], 8), [[]])
    check('explicit sequence 6', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['resize', 3], ['present', True], ['begin', 3], ['draw']], 8), [[0, 1, 2]])
    check('explicit sequence 7', solve([['damage', [0]], ['present', True], ['resize', 3], ['begin', 1], ['draw']], 8), [[0, 1, 2]])
    check('explicit sequence 8', solve([['damage', [99, -1, 2]], ['begin', 1], ['draw']], 8), [[2]])
    check('explicit sequence 9', solve([['full'], ['damage', [0]], ['begin', 1], ['draw']], 8), [[0, 1, 2, 3, 4, 5, 6, 7]])
    check('explicit sequence 10', solve([['damage', [0]], ['present', True], ['damage', [1]], ['present', True], ['damage', [2]], ['present', True], ['damage', [3]], ['present', True], ['begin', 2], ['draw']], 8), [[3]])
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
explicit sequence 0[[0, 1]][[0, 1]]Passed
explicit sequence 1[[0, 1, 2, 3], [0, 1, 2, 3]][[0, 1, 2, 3], [0, 1, 2, 3]]Passed
explicit sequence 2[[1, 2], [0, 1, 2]][[1, 2], [0, 1, 2]]Passed
explicit sequence 3[[0]][[0]]Passed
explicit sequence 4[[0]][[0]]Passed
explicit sequence 5[[]][[]]Passed
explicit sequence 6[[0, 1, 2]][[0, 1, 2]]Passed
explicit sequence 7[[]][[0, 1, 2]]Failed
explicit sequence 8[[2]][[2]]Passed
explicit sequence 9[[0, 1, 2, 3]][[0, 1, 2, 3]]Passed
explicit sequence 10[[3]][[3]]Passed

SHA-256 / 86ea0cf588e4fc960c646352d94310804cad95f3d3a04111fc616654830080d4

HELD IN THE MEMBER ARCHIVE

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

This mechanism has 11 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.

Every case sharing this mechanism uses the same contract and the same repair, so this one record is held back for all of them.

Member access is invitation-based. Sign in with your invited account to inspect the repair.

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Verification & scope

Finite one-dimensional integer sample sets model coverage state only; no geometric intersection, memory layout, GPU or graphics-standard conformance is claimed. 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 2026-09-29T14:45:11.397765+00:00.

Case digest / 512e42e931473d3894181bd865aea5205493c600aeeb708c74cd1a806de1e7e3