Cannot leave room

[siphomateke]

Issue
If you connect to a room, leave and then join again, there will be another you showing up under the user map. You can keep doing this to create more duplicates of yourself.

Steps to reproduce

1. Open empty folder
2. Connect to a room with the room id test
3. Leave the room
4. Connect to the same room (test)

Expected result
Only one of you should show up in the user map

[t-mullen]

Fixed in 4.2.0