A bridging-condition split-table execution case returns a second actor only in a full-module run

GraphQLQueryTest.splitTableField_bridgingConditionJoin_returnsActorsPerFilm in graphitron-sakila-example failed one full mvnd install -Plocal-db and passed the next, on an unchanged tree. The assertion is an exact list of actor ids: it expected [1] and got [1, 2], so the read returned one row too many rather than timing out or erroring.

What makes it worth an item rather than a re-run is that the same code answers differently depending on what ran beside it. Re-run alone the case passes; re-run as the whole GraphQLQueryTest class, 378 tests, it passes; the second full reactor build was green. No commit between the last known-green full build and the failing one touched generator main sources, the model DDL, or this module, which is what rules out a regression and leaves execution order or residual database state as the mechanism. An execution-tier case whose answer depends on its neighbours is a case that cannot be trusted either way: it will fail a green tree, and it will pass a broken one.

Where to start is what a second actor row means for this shape. The case is a @splitQuery field whose join is bridged by a @condition, so the candidates are a bridging predicate that admits an extra row when a row another case wrote is present (making the expected [1] correct only against a pristine table), and a fixture that mutates shared state without restoring it. The full-module failure is reproducible material: the failing run’s ordering is recoverable from the surefire report beside the passing one.

A second order-dependent failure surfaced in the same session, in graphitron-lsp and with nothing in common with this one beyond being order-dependent; it is filed as roadmap/trace-static-state-leaks-between-cases.md. Two in three full builds is what says the suite has such cases rather than one unlucky test, which is the reason both are items instead of re-runs.

Found while holding the In Review gate on the inlay enforcer item, which is unrelated to this module; filed rather than folded into that verdict.