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Menu teardown leaks its own event subscriptions · case 04

Menu teardown leaks its own event subscriptions.

Member previewVariant 4 · 3 implementations · 7 checks per implementation

Case contract

Each popup owns subscriptions, timers, content and anchors; teardown releases exactly owned resources and is safe when repeated.

Why this case matters

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

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixtureActualExpectedOutcome
listeners contract[][{"id": "b", "session": 5}]Failed

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