Description

Adding a template lock can break the block recovery.

This line prevent block recovery:

Step-by-step reproduction instructions

1. Create a custom post type with a template core/group
2. Add template_lock: 'insert'
3. Create new custom post type and add a paragraph or whatever
4. In the code editor change markup of core/group addin something like data-foo="bar"
5. The block is invalid.
6. Try to recovery block and nothing happens

Do the same steps on a normal post/page. The recovery works great if you try the recovery on a post/page.

Screenshots, screen recording, code snippet

No response

Environment info

No response

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes