Add India and Fiji to that list as well. India will not let you stay for longer than your longest lay over, for us three days. And Fiji, you cannot leave the country. One of the NZ pilots tried to leave to go to his home town and was denied to leave as a PAX.
My nominated base is ATL, but I regularly travel to DEL and it is allowed as I am an Indian citizen.
So short answer, GD travel is not allowed to a country where that specific country wont allow it. At the moment China, Canada, India, Fiji and HNL (except for US citizens, even green card holders are not allowed.)