markAsRead ran on every room visit (timeline at the bottom and focused) and
sent a threaded receipt for every unread thread, so a reply in a thread you
started or replied in lost its unread badge the moment you glanced at the
room, without opening the thread.
Reads from just viewing the timeline are now "passive":
- threads you follow (started, replied in, or were mentioned in) stay unread
until their panel is opened; other threads are still cleared so they don't
keep the room dot lit forever;
- while a followed thread has an unread reply, the main receipt is scoped to
the main timeline instead of unthreaded, because an unthreaded receipt
also reads every older thread reply (the next main message would clear the
thread anyway). The check also asks whether the latest reply is read, since
the thread's count lags when the reply and a main message share a sync;
- the thread open in the panel is skipped, as the panel sends its own
receipt (was two identical receipts per reply).
Explicit "mark as read" (room menu, Escape, bulk actions) still clears
everything. Unit tests for each rule plus a local-homeserver e2e that checks
the server's per-thread count survives a reply + newer main message.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA
Lotus CIandClaude Opus 5.5
a8db61f79f