Steps to reproduce:

1. Add Relation List field type to "Folder" Content Type.
2. Add some contents in this field when creating a new "Folder".
3. Notice disabled "Select all" checkbox -> should be enabled.
4. Publish "Folder" and edit it again.
5. Click on the "Select all" checkbox, notice the "Delete" button being disabled.

Result:
Steps 3 and 5 should not be happening.

Expected result:
The "Select all" checkbox should work consistently.