* [ ] Placeholder Users can Currently users **can't** get deleted by Users possessing the global right default. The default setting is to do so. not allow deleting users. They can only get locked. * [ ] The references to the orginal For placeholder will users "locking" looks kind of awkward. Placeholder users don't get replaced by references to the DeletedUser. That means for example that impersonated. Adding and deleting are sufficient from a placeholder user that was an assignee of a work package will not longer be shown as the assignee. Instead the assignee will be shown as an anonymous deleted user.
UX perspective.
* [ ] The changes We probably want to treat deleting users different from a deleting placeholder user to the deleted user shall be trackable in the activity journal of a work package just as any other assignee change. users.