docs(onboarding): group-07 names 412 for a stale RowVersion - #223
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The concurrency token only reaches a write through If-Match, so SupportsIfMatchAttribute always answers the stale-token DbUpdateConcurrencyException as 412; the "409 on an endpoint without it" branch described a path that does not occur. Matches MMCA.Common #445. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Summary
SetOriginalRowVersionin group-07 said a stale token is 412 on a[SupportsIfMatch]endpoint and 409 elsewhere. The token only ever reaches a write throughIf-Match(ADR-035), so 412 is the one answer; the 409 branch described a path that does not occur. Matches the source comment fix in ivanball/MMCA.Common#445.Group chapter rebuilt from its part file by
concat.ps1(only group-07 changed);npm run build: dead cross-links: none.Merging publishes the live site.
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