docs: def change_view(self, request, object_id, **kwargs):
          """
          For the concrete model, check ``get_content_model()``
          for a subclass and redirect to its admin change view.
          """
          instance = get_object_or_404(self.concrete_model, pk=object_id)
          content_model = instance.get_content_model()
  
          self.check_permission(request, content_model, "change")
  
          if content_model.__class__ != self.model:
              change_url = admin_url(content_model.__class__, "change",
                                     content_model.id)
              return HttpResponseRedirect(change_url)
  
          return super(ContentTypedAdmin, self).change_view(
              request, object_id, **kwargs)