Learn@UW/D2L - Group Restrictions for Discussion Forums and Topics are Not Copied to Re-Offered Courses
Group restrictions for Discussion forums and topics are not copied to re-offered courses using "Copy Components".
This can be seen whether viewing either from "Manage Groups" in the Classlist or "Set Group Restrictions" in Discussions.
After copying, the Restrictions tab in the Discussion topics shows that the topics should be restricted to a particular group, but they actually aren't and the restrictions need to be set manually.
This is expected behavior. Note that groups have to be recreated whenever you have a different enrollment in the new course offering than in the original course offering.