After a reconnect, repaint Conpherence thread state

Summary: Ref T12566. When we reconnect, refresh the current thread even if we replayed notifications.

Test Plan:

• Clicked the "Repaint" button, saw the thread refresh.
• Clicked the "Reconnect" button, saw the thread reresh.
• Launched aphlict debug, killed it, restarted it, saw the thread refresh after reconnect.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12566

Differential Revision: https://secure.phabricator.com/D17713