**The failure mode worth distinguishing: the rest of this family went
quiet on a renamed board. This one shouted.**
`getInReviewStallReason` satisfied its **own** lane check from
`context.reviewColumns` — then called `getTaskMergeBlocker` **without**
them. That helper re-ran its column-identity check against the literal
`in-review` and returned, for a perfectly healthy card:
```
task is in 'signoff', must be in 'in-review'
```
…which was surfaced as `{ code: "merge-blocker" }`. **Every in-review
card on a renamed board was flagged as stalled**, each citing a lane the
board does not have. That is how a signal stops being read at all.
## A second symptom, found by the revert rather than by reading
On a **genuinely failed** card, the identity message wins over the real
one. The operator saw the bogus column complaint instead of `task is
marked 'failed': merge verification failed`.
So it did not only invent stalls — it **masked the true reason for real
ones**. I would not have noticed that from the diff; it showed up
because the revert run asserted on the reason text.
## Same shape, last one in the family
The outer question was resolved and the inner one was not — the
half-conversion the helper's own comment records for `moves.ts`, and
#2963/#2964 fixed for the merge entry points. This is the last site the
audit turned up where the lane answer was already in scope and simply
not forwarded.
## Revert results
| | reverted → |
| --- | --- |
| the unforwarded call (what ships today) | **2 of 3 fail** — healthy
card reports a merge-blocker stall; failed card reports the wrong reason
|
**Fixture note worth keeping:** `paused` is deliberately *not* the
genuine-stall case. An earlier guard returns `undefined` for a paused
card before the merge blocker is ever consulted, so that case would pass
whether or not the lanes are forwarded — the vacuous shape this series
has produced eight times.
## Verification
`pnpm test:gate` 161 + 487 + 13 + 71; `@fusion/core` full suite **4878
passed** (457 files); `tsc` core clean; lint, lifecycle census
`--strict`, FNXC gate, changesets all clean.
2fd798cb36