Fix autocomplete not working on note edit form

Fix https://gitlab.com/gitlab-org/gitlab-ce/issues/33529

Bug introduced in
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/11278

app/assets/javascripts/notes.js

@@ -1060,7 +1060,7 @@ const normalizeNewlines = function(str) {
       var targetId = $originalContentEl.data('target-id');
       var targetType = $originalContentEl.data('target-type');
-      new gl.GLForm($editForm.find('form'));
+      new gl.GLForm($editForm.find('form'), this.enableGFM);
       $editForm.find('form')
         .attr('action', postUrl)