invoked the pipelines class when builds are dynamically loaded and dispatched for commit builds page

CHANGELOG.md

@@ -17,6 +17,7 @@ Please view this file on the master branch, on stable branches it's out of date.
 ## 8.13.1 (unreleased)
   - Fix error in generating labels
   - Fix reply-by-email not working due to queue name mismatch
+  - Fixed hidden pipeline graph on commit and MR page !6895
   - Expire and build repository cache after project import
   - Fix 404 for group pages when GitLab setup uses relative url
   - Simpler arguments passed to named_route on toggle_award_url helper method 

app/assets/javascripts/dispatcher.js.es6

@@ -117,6 +117,9 @@
           new ZenMode();
           shortcut_handler = new ShortcutsNavigation();
           break;
+        case 'projects:commit:builds':
+          new gl.Pipelines();
+          break;
         case 'projects:commits:show':
         case 'projects:activity':
           shortcut_handler = new ShortcutsNavigation();

app/assets/javascripts/merge_request_tabs.js

@@ -282,6 +282,7 @@
             document.querySelector("div#builds").innerHTML = data.html;
             gl.utils.localTimeAgo($('.js-timeago', 'div#builds'));
             _this.buildsLoaded = true;
+            if (!this.pipelines) this.pipelines = new gl.Pipelines();
             return _this.scrollToElement("#builds");
           };
         })(this)