Thread:Sannse/@comment-4828844-20140408074016/@comment-366087-20140408091242

Submit to Special:Contact/bug

Meantime, you can try editing MediaWiki:Welcome-user with an Admin's username (plaintext, not a link), which should bypass the variable.

Note that this does NOT address the variable which seems to be bugged and should still be reported so the techies can fix it.