Fixed tests failures (#19400).

git-svn-id: http://svn.redmine.org/redmine/trunk@14161 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/repository_git_test.rb

@@ -50,6 +50,8 @@ class RepositoryGitTest < ActiveSupport::TestCase
   end
 
   def test_nondefault_repo_with_blank_identifier_destruction
+    Repository.delete_all
+
     repo1 = Repository::Git.new(
                           :project    => @project,
                           :url        => REPOSITORY_PATH,