Switching from Wi-Fi to Ethernet while a document is open can leave the previous presence session visible for several seconds after the new connection is established. I can reproduce it consistently when the network handoff happens while the tab is in the background.

This discussion began in `#general` after a user reported that reconnecting could silently overwrite unsent editor changes. The selected messages capture the investigation, the proposed operation-replay approach, the deleted-block edge case, and the resulting recovery behavior we agreed to implement.

After a project tab remains suspended for several minutes, resuming it causes the client to reconnect every few seconds. The UI state is restored correctly, but the realtime subscription appears to consume the same resume token twice. I’m reporting this in Northstar first because it presents as an application bug. We still need to determine whether the cause is in Northstar or Rivet.