A member reply merged into a still-queued task moves trigger_comment_id to
the reply and leaves the thread root only in coalesced_comment_ids.
ListConversationRootOwners matched the root against trigger_comment_id alone,
so the thread lost its owner and later un-mentioned replies under the root
were silently dropped. Treat a root in coalesced_comment_ids as owned, the
same coverage rule taskCoversReplyParent and CancelAgentTasksByTriggerComment
already use.
Co-authored-by: Cursor <[email protected]>
Co-authored-by: multica-agent <[email protected]>
Comment owner routing loaded every task row on an issue, including context/result payloads, before selecting the current thread owners. Filter by issue and root comment in SQL and return one agent/squad pair per owner.
Closes#8711
