Standard close: loser of a simultaneous close adopts the winner's result (#30) #31
2026-11-09
Standard close: the loser of a simultaneous close adopts the winner's result
Status is a concurrency token, so the second SaveChanges of two simultaneous CloseMotionAsync calls throws DbUpdateConcurrencyException. Reload and return, with no second motion.closed audit event; the same pattern as the sealed closer. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Test: a second simultaneous close of a Standard motion must not throw
Fails at this commit with DbUpdateConcurrencyException from CloseMotionAsync: Motion.Status became a concurrency token in BifrostDbContext.cs:288. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>