base: fix problem that in some view context we don't have matchdict.

rhodecode/lib/base.py

@@ -466,7 +466,7 b' def get_auth_user(request):'
 
     # make sure that we update permissions each time we call controller
     _auth_token = (request.GET.get('auth_token', '') or request.GET.get('api_key', ''))
-    if not _auth_token:
+    if not _auth_token and request.matchdict:
         url_auth_token = request.matchdict.get('_auth_token')
         _auth_token = url_auth_token
         if _auth_token: