Duplicated relation blocks show empty M2A items in drawer

[formfcw]

Describe the bug
When duplicating relation blocks that relate to M2A items, the items are empty if you open the drawer after duplication.
Use case: when duplicating related content block, then the related items are empty if you open the drawer.

Flexible Editor Version:
1.0.0

Directus Version:
10.4.3