Jean-Philippe Lang 8a6ce3a646 Make sure that custom field format cannot be changed.
git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10624 e93f8b46-1217-0410-a6f0-8f06a7374b81
2012-10-13 07:40:07 +00:00
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