FA-30935 / Keyboard interactions / Member archive
Composition transaction ownership: Cancellation from another editor closes the current composition · case 05
The event trace violates the cancel match rule and produces incorrect keyboard state or command output.
Case contract
Events [kind,owner,text]. Start replaces active preedit, update applies only to active owner, commit appends supplied text once for active owner and closes, cancel closes matching owner without committing, focus switches cancel old owner. Return committed strings, active owner and preedit. Inputs are finite ordered event traces; return the stated deterministic state. Batch entries are independent. N varies the number of independent input transactions.
Why this case matters
Controlled keyboard event processing model for debugging application event logic.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| composition-transaction scenario 7 | [[[], null, "", 0], [[], null, "", 0], [[], null, "", 0], [[], null, "", 0], [[], null, "", 0]] | [[[], "a", "x", 0], [[], "a", "x", 0], [[], "a", "x", 0], [[], "a", "x", 0], [[], "a", "x", 0]] | Failed |
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