FA-33481 / Menu interactions / Open access

Branch-scoped menu command closes the entire menu session · case 01

Branch-scoped menu command closes the entire menu session.

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

ROOT CAUSE

The menu-dismissal-policy model applies `[]` at its leaf-scope operation instead of the stipulated transformation.

VERIFIED REPAIR

Apply `p['chain'][:p['depth']] if p['scope']=='branch' else []` at leaf-scope.

Unsuccessful approach: The attempted repair `p['chain']` still violates the leaf-scope oracle.

Case contract

Menu dismissal reasons map to explicit close scopes; command completion, owner removal and outside dismissal do not share a universal policy.

Why this case matters

Cascading and context menus require coherent command and session state as content changes.

1 / The failure

Exit 1

"""Failure Map reference implementation. Python standard library only."""
import json
import math
import unicodedata
N = 1
observations = []
def solve(action, p):
    if action == 'leaf-scope':
        return []
    if action == 'veto':
        return p['requested'] and not p['vetoed']
    if action == 'mandatory-teardown':
        return p['owner_removed'] or not p['vetoed']
    if action == 'reason-priority':
        return next(x for x in ['owner-removed','command','outside'] if x in p)
    if action == 'pending-command':
        return p['pending'] if p['reason']=='transfer' else []
    if action == 'nested-boundary':
        return p['chain'][:p['boundary']]
    return {'error': 'unsupported menu operation'}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
check('leaf-scope contract', solve('leaf-scope', {'chain':['root','sub',str(N)],'depth':1,'scope':'branch'}), ['root'])
check('veto contract', solve('veto', {'requested':True,'vetoed':True,'owner':N}), False)
check('mandatory-teardown contract', solve('mandatory-teardown', {'owner_removed':True,'vetoed':True,'id':N}), True)
check('reason-priority contract', solve('reason-priority', ['outside','owner-removed','command']), 'owner-removed')
check('pending-command contract', solve('pending-command', {'pending':[N],'reason':'transfer'}), [N])
check('nested-boundary contract', solve('nested-boundary', {'chain':['outer','local','child'+str(N)],'boundary':1}), ['outer'])
check('unknown operation', solve('unknown', {}), {'error': 'unsupported menu operation'})
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 fixture	Actual	Expected	Outcome
leaf-scope contract	`[]`	`['root']`	Failed
veto contract	`False`	`False`	Passed
mandatory-teardown contract	`True`	`True`	Passed
reason-priority contract	`owner-removed`	`owner-removed`	Passed
pending-command contract	`[1]`	`[1]`	Passed
nested-boundary contract	`['outer']`	`['outer']`	Passed
unknown operation	`{'error': 'unsupported menu operation'}`	`{'error': 'unsupported menu operation'}`	Passed

SHA-256 / a26e34a080100b8d8381c034077ce56173c4aa81e64c7d1afe85bdfd8d9f35fb

2 / The unsuccessful fix

Exit 1

"""Failure Map reference implementation. Python standard library only."""
import json
import math
import unicodedata
N = 1
observations = []
def solve(action, p):
    if action == 'leaf-scope':
        return p['chain']
    if action == 'veto':
        return p['requested'] and not p['vetoed']
    if action == 'mandatory-teardown':
        return p['owner_removed'] or not p['vetoed']
    if action == 'reason-priority':
        return next(x for x in ['owner-removed','command','outside'] if x in p)
    if action == 'pending-command':
        return p['pending'] if p['reason']=='transfer' else []
    if action == 'nested-boundary':
        return p['chain'][:p['boundary']]
    return {'error': 'unsupported menu operation'}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
check('leaf-scope contract', solve('leaf-scope', {'chain':['root','sub',str(N)],'depth':1,'scope':'branch'}), ['root'])
check('veto contract', solve('veto', {'requested':True,'vetoed':True,'owner':N}), False)
check('mandatory-teardown contract', solve('mandatory-teardown', {'owner_removed':True,'vetoed':True,'id':N}), True)
check('reason-priority contract', solve('reason-priority', ['outside','owner-removed','command']), 'owner-removed')
check('pending-command contract', solve('pending-command', {'pending':[N],'reason':'transfer'}), [N])
check('nested-boundary contract', solve('nested-boundary', {'chain':['outer','local','child'+str(N)],'boundary':1}), ['outer'])
check('unknown operation', solve('unknown', {}), {'error': 'unsupported menu operation'})
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 fixture	Actual	Expected	Outcome
leaf-scope contract	`['root', 'sub', '1']`	`['root']`	Failed
veto contract	`False`	`False`	Passed
mandatory-teardown contract	`True`	`True`	Passed
reason-priority contract	`owner-removed`	`owner-removed`	Passed
pending-command contract	`[1]`	`[1]`	Passed
nested-boundary contract	`['outer']`	`['outer']`	Passed
unknown operation	`{'error': 'unsupported menu operation'}`	`{'error': 'unsupported menu operation'}`	Passed

SHA-256 / d0de4d4a81f0e2ddf00234a83a986379cf1f47b5bcb651ccd87a9d2ffac7f9d5

3 / The verified repair

Exit 0

"""Failure Map reference implementation. Python standard library only."""
import json
import math
import unicodedata
N = 1
observations = []
def solve(action, p):
    if action == 'leaf-scope':
        return p['chain'][:p['depth']] if p['scope']=='branch' else []
    if action == 'veto':
        return p['requested'] and not p['vetoed']
    if action == 'mandatory-teardown':
        return p['owner_removed'] or not p['vetoed']
    if action == 'reason-priority':
        return next(x for x in ['owner-removed','command','outside'] if x in p)
    if action == 'pending-command':
        return p['pending'] if p['reason']=='transfer' else []
    if action == 'nested-boundary':
        return p['chain'][:p['boundary']]
    return {'error': 'unsupported menu operation'}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
check('leaf-scope contract', solve('leaf-scope', {'chain':['root','sub',str(N)],'depth':1,'scope':'branch'}), ['root'])
check('veto contract', solve('veto', {'requested':True,'vetoed':True,'owner':N}), False)
check('mandatory-teardown contract', solve('mandatory-teardown', {'owner_removed':True,'vetoed':True,'id':N}), True)
check('reason-priority contract', solve('reason-priority', ['outside','owner-removed','command']), 'owner-removed')
check('pending-command contract', solve('pending-command', {'pending':[N],'reason':'transfer'}), [N])
check('nested-boundary contract', solve('nested-boundary', {'chain':['outer','local','child'+str(N)],'boundary':1}), ['outer'])
check('unknown operation', solve('unknown', {}), {'error': 'unsupported menu operation'})
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 fixture	Actual	Expected	Outcome
leaf-scope contract	`['root']`	`['root']`	Passed
veto contract	`False`	`False`	Passed
mandatory-teardown contract	`True`	`True`	Passed
reason-priority contract	`owner-removed`	`owner-removed`	Passed
pending-command contract	`[1]`	`[1]`	Passed
nested-boundary contract	`['outer']`	`['outer']`	Passed
unknown operation	`{'error': 'unsupported menu operation'}`	`{'error': 'unsupported menu operation'}`	Passed

SHA-256 / 8ff895ce62b2a56a133c23051c0c1e7bd551080975c15f5cb8d3cd0859557719

Verification & scope

Offline supplied-valid-payload model; excludes DOM, keyboard, focus, selection, announcements and browser conformance. 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 2026-09-29T14:42:22.794372+00:00.

Case digest / fd3b4e3f50407c1a8268b67d4a462f9d504bbd58189242e9e2ab5aee36a07b38