In issue https://www.drupal.org/project/social/issues/3453509 → we discussed removing the hook to automatically add the field_grequest_message. In order for that change to work we also need to remove any "hard-coded" assumptions that this field exist, since the hook will be remove we can no longer assume that the field will always be there. So we need to add a check if the field is present before populating it.
1. Create a new group type and set the option to request to join for all users.
2. As a seperate user request the access to join the group and write a request message
3. As the group admin check if any request has been made and verify that the message is present.
Add a check if the field_grequest_message field exist in GroupRequestMembershipRequestForm.
Needs work
13.0
Code (back-end)
conflicts with #3453509: Remove social_group_request_group_content_type_insert hook and place field_request_message config in optional → different update hooks with the same number