fix(web): the sidebar no longer crashes when a thread leaves it (#20522)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
70d60e03a7Gilberto Valadez committed on 10/17/2026, 2:30:18 AM· committed by GitHubparent7111501
1 file changedLine totals unavailable