Total submissions limit: Empty webform without message for anonymous

[olafgrabienski]

If the "Total submissions limit" for a webform is set, and the limit is reached, an anonymous visitor sees only an empty webform but not the respective message (This form has received the maximum number of entries.).

Steps to reproduce:

• Create a simple webform for anonymous visitors.
• Set the "Total Submissions Limit" to 1.
• Submit the webform as anonymous.
• Visit the same webform again as anomymous.

Actual result: For anonymous visitors, the webform title appears without content. No message is displayed.

Expected result: The message This form has received the maximum number of entries. is displayed.

Additional information:

There is a related issue for the D7 Webform version: https://www.drupal.org/project/webform/issues/2860730

[olafgrabienski]

The Drupal 7 issue mentions different approaches to fix the issue. There is also a patch which didn't work on my Backdrop site. I was able to make it working somehow, but I'm not sure if it's a preferable approach.