Some server have something that makes a bug. The bug doesn't dissapear until you close the client... It's really annoying! Please fix this bug.

If you look at the pictures then you will see that it happend...

How to recreate:
Start minecraft 1.8.2
Join a minecraft server called Arkhamnetwork (example)
Leave the server as fast as you can
Join anoter random server
You will realise that there's two chats glued together. It take a few seconds until you see a message...

How to fix it ''now''
Restart the client.