The supersede fixtures pinned "an in-flight re-run is the newer word".
Nothing pinned the converse: a run that FINISHED after an earlier
in-flight entry is also the newer word, so the context is settled and
reads SUCCESS rather than staying PENDING.
That is the assertion that catches an over-correction — widening
"an undateable entry sorts last" into "an in-flight entry always wins".
Verified it fails under exactly that mutation and that nothing else in
the suite does.
Also corrects the comment above the undateable fixture: that case is
guarded by the sort tiebreak, not by the dating expression, so the two
changes are now separately pinned. Reverting only the dating expression
fails 2 fixtures (the two zero-sentinel ones), not 3.
48 -> 49. Reconciler unchanged.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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