often when unsleeping the app, stale typing notifs flash up

unsure where they're queued but they flicker up and then disappear and it's unclear if the user is just typing or if it was from hours ago when they last wrote a msg

No file, test, or entry point is named. Start by reproducing the stale typing notification flicker when the iOS app wakes from sleep, then trace where typing notifications are queued and cleared. Done means old notifications do not flash after wake and current typing state remains understandable.

Written by the indexing model from the issue text.