For example, #755598 (django-guardian), and #755655 (django-oauth-plus) becoming RC will stuff up djangorestframework, because djangorestframework build depends on these packages. So fixing djangorestframework isn't as simple as fixing #755616.
Oddly enough python-djangorestframework is broken in testing already because django-oauth-plus is not in testing. This might be because of RC bugs in python-oauth2. #722656, #722657.
Is anyone trying to fix python-oauth2???? It looks like it has security issues that have not been touched in almost a year now.