Try to fix uniqueness failure

Author: root

Diff for: spec/models/repository_git_extra_spec.rb

@@ -3,7 +3,7 @@
 describe RepositoryGitExtra do
 
   describe "Valid RepositoryGitExtra creation" do
-    before do
+    before(:each) do
       @git_extra = build(:repository_git_extra)
     end