- Issue created by @tedbow
Follow-up to π Lift most logic out of ComponentTreeItem::preSave() and into a new validation constraint Needs work . see https://git.drupalcode.org/project/experience_builder/-/merge_requests/6...
in that issue we ignored and OutOfRangeException if the component tree was config because at that point we don't have a host entity.
Make new exception type for when the host entity is missing.