Add fast tasklist support to MR tasklist

Also adds specs and fixes existing specs

1 files changed, 8 insertions, 0 deletions

diff --git a/app/assets/javascripts/merge_request.js b/app/assets/javascripts/merge_request.js
index ac3b47cd218..3b42a154af8 100644
--- a/app/assets/javascripts/merge_request.js
+++ b/app/assets/javascripts/merge_request.js
@@ -2,6 +2,7 @@
 
 import $ from 'jquery';
 import { __ } from '~/locale';
+import createFlash from '~/flash';
 import TaskList from './task_list';
 import MergeRequestTabs from './merge_request_tabs';
 import IssuablesHelper from './helpers/issuables_helper';
@@ -40,6 +41,13 @@ function MergeRequest(opts) {
         document.querySelector('#task_status').innerText = result.task_status;
         document.querySelector('#task_status_short').innerText = result.task_status_short;
       },
+      onError: () => {
+        createFlash(
+          __(
+            'Someone edited this merge request at the same time you did. Please refresh the page to see changes.',
+          ),
+        );
+      },
     });
   }
 }