Author: DaB
Description:
In german wikitionary I have renamed a user from "Gunblade" to "gunblade". Now
he can't login. brion tells me, that I need to rename the user, but I can't.
Special:Renameuser tells me, that a user "gunblade" doesn't exist, but
special:listuser list him.
Version: unspecified
Severity: normal