FA-8144 / Autocomplete interactions / Member archive

Combobox keyboard commit: Tab unexpectedly commits an unconfirmed suggestion · case 04

Tab unexpectedly commits an unconfirmed suggestion.

Member previewVariant 4 · 3 implementations · 12 checks per implementation

Case contract

Escape discards query but preserves committed value; Enter commits only an existing active option in an open popup; Tab closes without commit; Clear resets both; typing opens suggestions.

Why this case matters

A deterministic model of combobox keyboard commit; this isolates one interface invariant without requiring a browser.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
tab	`["b", "b", false]`	`["a", "b", false]`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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