fixed commits links from tree view

app/views/refs/_tree_item.html.haml

@@ -15,4 +15,4 @@
     - tm = @project.team_member_by_name_or_email(content_commit.author_email, content_commit.author_name)
     - if tm
       = link_to "[#{tm.user_name}]", project_team_member_path(@project, tm)
-    = link_to truncate(content_commit.safe_message, :length => tm ? 20 : 40), project_commit_path(@project, content_commit), :class => "tree-commit-link"
+    = link_to truncate(content_commit.safe_message, :length => tm ? 20 : 40), project_commit_path(@project, content_commit.id), :class => "tree-commit-link"