don't loop-redirect on category name = formdef name (#28768)

auquotidien/modules/root.py

@@ -842,6 +842,8 @@ class AlternateRootDirectory(OldRootDirectory):
                 if uri_rest.startswith(base_url):
                     uri_rest = uri_rest[len(base_url):]
                 if f.category:
+                    if f.category.url_name == f.url_name:
+                        return FormsRootDirectory(f.category)._q_traverse(path[1:])
                     return redirect('%s%s/%s' % (base_url, f.category.url_name, uri_rest))
 
             raise e