When activating the nspawn mock extension in EPEL or Fedora mock, the pm request stops working, because the socket the pm request client uses to talk to mock is blocked. There is probably a bad nspawn setting in the mock extension. This is blocking pm request activation in koji and copr
It is possible to pass in a socket into an nspawn container. But what and how is up to the users of mock. I'll reassign this to mock, since I don't think there's anything to fix in systemd.
I think it is fixed now