Subject of the issue

When dragging a widget from 1 grid into another and you press the cancel key (escape); the widget just dissapears. This is also the case in the nested grid demo: https://gridstackjs.com/demo/nested.html#

Your environment

• Currently running gridstack: 12.2.2 in an Angular Project

Steps to reproduce

https://gridstackjs.com/demo/nested.html#

• Grab widget with the number 2 on it and drag it to another subgrid
• Press the escape key

Expected behavior

When pressing the escape key the widget should return to its original location instead of disapearing