Can't publish an rpm publication when using rbac

[jlsherrill]

Version
pulp-ubi container image 39a9398

Describe the bug
When trying to create an rpm publication I'm getting a traceback:

ulp [0ed4752d7e7d49b9ae99506f9e8fe4f9]: django.request:ERROR: Internal Server Error: /pulp/edc307cb/api/v3/publications/rpm/rpm/
Traceback (most recent call last):
File "/usr/local/lib/python3.8/site-packages/django/core/handlers/exception.py", line 55, in inner
response = get_response(request)
File "/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py", line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python3.8/site-packages/django/views/decorators/csrf.py", line 56, in wrapper_view
return view_func(*args, **kwargs)
File "/usr/local/lib/python3.8/site-packages/rest_framework/viewsets.py", line 125, in view
return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 509, in dispatch
response = self.handle_exception(exc)
File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 469, in handle_exception
self.raise_uncaught_exception(exc)
File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
raise exc
File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 497, in dispatch
self.initial(request, *args, **kwargs)
File "/usr/local/lib/python3.8/site-packages/pulpcore/app/viewsets/base.py", line 300, in initial
super().initial(request, *args, **kwargs)
File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 415, in initial
self.check_permissions(request)
File "/usr/local/lib/python3.8/site-packages/rest_framework/views.py", line 332, in check_permissions
if not permission.has_permission(request, self):
File "/usr/local/lib/python3.8/site-packages/rest_access_policy/access_policy.py", line 69, in has_permission
allowed = self._evaluate_statements(statements, request, view, action)
File "/usr/local/lib/python3.8/site-packages/rest_access_policy/access_policy.py", line 113, in _evaluate_statements
matched = self._get_statements_matching_conditions(
File "/usr/local/lib/python3.8/site-packages/rest_access_policy/access_policy.py", line 262, in _get_statements_matching_conditions
passed = self._check_condition(condition, request, view, action)
File "/usr/local/lib/python3.8/site-packages/rest_access_policy/access_policy.py", line 286, in _check_condition
result = method(request, view, action, arg)
File "/usr/local/lib/python3.8/site-packages/pulpcore/app/global_access_conditions.py", line 292, in has_repo_attr_model_or_domain_or_obj_perms
return has_model_or_domain_perms(request, view, action, permission) or has_repo_attr_obj_perms(
File "/usr/local/lib/python3.8/site-packages/pulpcore/app/global_access_conditions.py", line 284, in has_repo_attr_obj_perms
plugin_repository = view.get_object().repository.cast()
File "/usr/local/lib/python3.8/site-packages/rest_framework/generics.py", line 88, in get_object
assert lookup_url_kwarg in self.kwargs, (
AssertionError: Expected view RpmPublicationViewSet to be called with a URL keyword argument named "pk". Fix your URL conf, or set the `.lookup_field` attribute on the view correctly.

To Reproduce
Steps to reproduce the behavior:

I'll let @dkliban fill this in

Expected behavior
able to create a publication

Additional context
Add any other context about the problem here. Please provide links to any previous discussions via Discourse or Bugzilla.

[dkliban]

Looks like this issue is specific to the RPM plugin.