Fix for https://en.wikipedia.org/wiki/Wikipedia:AWB/B#KeyNotFoundException_in_MainForm.UpdateUserName

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@9509 5227b50d-9349-4574-b055-4b0a7525e11c
Fix for https://en.wikipedia.org/wiki/Wikipedia:AWB/B#KeyNotFoundException_in_MainForm.UpdateUserName

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code@9510 5227b50d-9349-4574-b055-4b0a7525e11c