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Skip identical ID selector recascade - #552
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This was referenced Sep 19, 2026
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Closes #551. Advances #243 and #235.
Exact same-value
idwrites through bothsetAttributeand the reflected IDL property now preserve diagnostics and custom-element reactions while returning before selector-transition recascade planning. Changed IDs and absent-ID empty writes retain existing mutation/invalidation. This targets repeated stable row-ID writes in unchanged Code OSS virtual lists without adding cache state.Validation intentionally deferred:
git diff --checkpassed; 8,192 connected/detached writes, zero scheduling/layout/publication, reaction preservation, and bounded reconnect regressions were authored but not executed. Dynamic Code OSS A/B, package, lifecycle, visual, memory, and performance gates remain in #243.