Jean-Philippe Lang d24e66370b Prevents validation error when adding a user to a group (#6457).
git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4437 e93f8b46-1217-0410-a6f0-8f06a7374b81
2010-11-27 14:46:51 +00:00
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