Fix failing test.

See http://ci.finn.de/builds/1-8-7_redmine-trunk_postgres/4100

Contributed by Holger Just

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4106 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/query_test.rb

@@ -400,7 +400,7 @@ class QueryTest < ActiveSupport::TestCase
                                [group1.name, group1.id],
                                [group2.name, group2.id]
                               ]
-        assert_equal expected_group_list, @query.available_filters["member_of_group"][:values]
+        assert_equal expected_group_list.sort, @query.available_filters["member_of_group"][:values].sort
       end
 
     end