Merge pull request #12714 from catboxanon/resize-handle-reset

Reset columns on resize handle double click

javascript/resizeHandle.js

@@ -75,6 +75,8 @@
             R.screenX = evt.screenX;
         });
 
+        resizeHandle.addEventListener('dblclick', () => parent.style.gridTemplateColumns = GRID_TEMPLATE_COLUMNS);
+
         afterResize(parent);
     }