Fixed a problem from r10036. Fixed #10470.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10040 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/handlers/base.py

@@ -50,7 +50,7 @@ class BaseHandler(object):
                 continue
 
             if hasattr(mw_instance, 'process_request'):
-                self._request_middleware.append(mw_instance.process_request)
+                request_middleware.append(mw_instance.process_request)
             if hasattr(mw_instance, 'process_view'):
                 self._view_middleware.append(mw_instance.process_view)
             if hasattr(mw_instance, 'process_response'):