Added discussion_line_code value to note response and use it to query the right…

app/assets/javascripts/notes.js

@@ -414,7 +414,8 @@ export default class Notes {
     }
     this.note_ids.push(noteEntity.id);
     form = $form || $(`.js-discussion-note-form[data-discussion-id="${noteEntity.discussion_id}"]`);
-    row = form.closest('tr');
+
+    row = form.length ? form.closest('tr') : $(`#${noteEntity.discussion_line_code}`);
 
     if (noteEntity.on_image) {
       row = form;

app/controllers/concerns/notes_actions.rb

@@ -106,7 +106,8 @@ module NotesActions
             discussion_resolvable: discussion.resolvable?,
 
             diff_discussion_html: diff_discussion_html(discussion),
-            discussion_html: discussion_html(discussion)
+            discussion_html: discussion_html(discussion),
+            discussion_line_code: discussion.line_code,
           )
         end
       end