- useOnboardingChecklist.wiring.test.ts: a data event, then a route
change 100 ms later, still gets its deferred re-read (two LOAD_START).
Pins the follower's deps: with `pathname` among them, the cleanup drops
the pending timer and the test goes red (mutation M1 of the review). The
comment that claimed "one subscription only" now points to this test.
- hookHarness.test.ts: a dependency array that shrinks, or grows by
`undefined`, recomputes the memo (mutation M8, length branch of
depsChanged).
- NOT SIMULATED, in hookHarness.ts and docs/architecture.md: the dispatch
of a useReducer keeps the reducer of the first render, where React
applies the latest one.
Refs #409
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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