Adding a webform custom block prevents node save

Hi guys! The problem still occurs, steps to reproduce:
1. Create new block type.
2. Create reference field to webform entity.
3. Enable block in content type that uses gutenberg.
4. Add drupal block on node create - it renders with success.
5. Click save button - page is being reloaded without node save - failure.

kszarek thank you, for reporting the issue. It seems that the issue is still applicable, I'm reopening the issue.
Feel free to provide a patch if you know how to solve it.

Note: temporary solution is to save node with having opened Gutenberg editor as a Code editor

Hi guys! Comparison of the POST data shows that form data of the inner form (webform) are added to the node edit form data including the form_id, form_token and form_build_id.

The left part on the image shows the POST data before the switch to Code editor and back to Visual editor. The right part is the situation after the switch.

Hope it helps.

The problem could be solved by adding property "disabled" of inner form elements to true. So it's just little update of #3

Problem of the proposed solution is the appearence of such form elements as they inherit the disabled styling (buttons included).

I'll post the patch soon.

Patch that disables form elements inside Drupal block.