Fix repo_root for grouped repos

rhodecode/lib/middleware/simplegit.py

@@ -222,7 +222,7 b' class SimpleGit(BaseVCSController):'
 
         from rhodecode.lib.middleware.pygrack import make_wsgi_app
         app = make_wsgi_app(
-            repo_root=os.path.dirname(repo_path),
+            repo_root=safe_str(self.basepath),
             repo_name=repo_name,
             username=username,
         )