Can not drag an item after moving it out of subgrid #2740

Subject of the issue

The item can not be moved after moving it out of a subgrid.

Your environment

I've got the issue after upgrade from 10.2.0.
It is reproducible on demo page

• version of gridstack.js - 10.3.0
• chrome/linux

Steps to reproduce

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

1. Click Add Nested Grid
2. Move just created Nested Grid to another subgrid
3. Move an item (world in the video below) out of the created Nested Grid
4. Try to move this item (world)
5. The created Nested Grid is moving instead the item (world)

Expected behavior

The item should move as usual