Bukkit

What steps will reproduce the problem?
1. Use the latest Bukkit version (1.1)
2. Start Server
3. Try to change the name to one, who is not connectet to the server

What is the expected output? What do you see instead?
You get freezed, can't use any command and you are still yourself (thats what you see, but I think, the name get changed because when I disconnect (because of the freeze) and connect again, i haven't to login (with authme) ! that means, it don't get it, that I logged out (or so) - the other logged out and i'm still online for it.. nah it's 'complex' and I'm not so good in english. sorry for that

What version of the product are you using?
latest

Do you have an error log of what happened?
No Errors

Please provide any additional information below.