r7593 etc. replaced Rails2 Errors#on. Rails3 Errors#[] always return array. So, Rails3 Errors#[] is always not nil. git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@12070 e93f8b46-1217-0410-a6f0-8f06a7374b81
= Redmine Redmine is a flexible project management web application written using Ruby on Rails framework. More details can be found in the doc directory or on the official website http://www.redmine.org
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