scm: git: prevent showing trace when repository path changed.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5137 e93f8b46-1217-0410-a6f0-8f06a7374b81

diff --git a/lib/redmine/scm/adapters/git_adapter.rb b/lib/redmine/scm/adapters/git_adapter.rb
index 7d0a8973f93a99dd8daa65d24fa24a1a3e0adf73..6d012a7ec74eeb4a73a73f99bcdd3d3d694266b7 100644 (file)
--- a/lib/redmine/scm/adapters/git_adapter.rb
+++ b/lib/redmine/scm/adapters/git_adapter.rb
@@ -101,7 +101,9 @@ module Redmine
         end
 
         def default_branch
-          branches.include?('master') ? 'master' : branches.first
+          bras = self.branches
+          return if bras.nil?
+          bras.include?('master') ? 'master' : bras.first
         end
 
         def entries(path=nil, identifier=nil)