Fix #259

Author: root

Diff for: lib/redmine_git_hosting/patches/repository_git_patch.rb

@@ -367,7 +367,7 @@ def gitolite_hook_key
 
 
         def empty?
-          if extra_info.nil? || !extra_info.has_key?('heads')
+          if extra_info.nil? || ( !extra_info.has_key?('heads') && !extra_info.has_key?('branches') )
             return true
           else
             return false