Steps to reproduce the issue

curl --location '{{base_url}}api/index.php/v1/users/groups' --header 'Content-Type: application/json' --data '{"title": "Group Title", "parent_id": 1}'

Expected result

Response Code: 200 OK
Body: { "links": { "self": "{{base_url}}api/index.php/v1/users/groups" }, "data": { "type": "groups", "id": "...", "attributes": { "id": ..., "parent_id": 1, "lft": ..., "rgt": ..., "title": "Group Title" } } }

Actual result

Response Code: 400 Bad Request
Body: { "errors": [ { "title": "Field required: id" } ] }

System information (as much as possible)

Joomla 4.3.2

Additional comments

The "id" field attribute Required is "true". Thats causes the validation of the model to fail on save.