Fix `Ctrl+Enter` support for Quick Submit

app/assets/javascripts/shortcuts.js

@@ -33,6 +33,10 @@
     };
     Shortcuts.prototype.toggleMarkdownPreview = function(e) {
+      // Check if short-cut was triggered while in Write Mode
+      if ($(e.target).hasClass('js-note-text')) {
+        $('.js-md-preview-button').focus();
+      }
       return $(document).triggerHandler('markdown-preview:toggle', [e]);
     };

changelogs/unreleased/29550-fix-quick-submit-on-preview.yml

+---
+title: Fix quick submit short-cut on preview tab for comments
+merge_request: 10002
+author: