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Vance IngallsandClaude Opus 5
f26f48b3a6
Automating a group's effect parameter from the FX rack left the group's timeline row showing nothing — no lanes, and after the previous commit no wave button either, since it now gates on the count. The rack is not group-aware: selecting a group and writing its `data-automation` goes through the ordinary element attribute path. That path's resync re-read the element's OWN automation and chain and stopped there. But a group's lanes are derived from the mirrored `audioGroup*` fields its MEMBERS carry, never from the group element — so the mirrors kept the value they were born with until a reload, and the row had nothing to draw. Fixed at the sync sink, which exists precisely so a writer does not have to know what needs refreshing: it now also re-reads what each member's group carries, through the cache that already invalidates itself on any group attribute change. The four fields are compared as one record rather than a growing `&&` chain, which keeps the callback under the complexity gate and stops the next field being added to the read but not the compare. Verified live: the Voiceover group's row went from no toggle to `∿ 1` — its one author-owned lane, the carve's three bands correctly excluded. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>