Multiple editor instances cause duplicates on drag&drop

[cugu]

Describe the bug
Dragging an item from one editor instance to another does not remove it from the source instance. This leads to duplicates.

To Reproduce
https://stackblitz.com/edit/github-cz76gj?file=App.tsx

Related

• Rendering multiple editor on a page causes unexpected behavior on drag and drop. #173
• fix: Isolated drag/drop per editor instance #174