FA-11859 / Search retrieval semantics / Member archive
Required terms in different fields produce a same-field hit · case 04
Required terms in different fields produce a same-field hit.
Case contract
Return whether any single field contains all query terms. Empty query matches any existing field; no fields never matches.
Why this case matters
An offline deterministic retrieval model isolates this search contract from tokenization, storage, and network behavior.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| cross field leakage | true | false | Failed |
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