I seem to remember a few months back being told that if someone else changed your allegiance, you should not have the 2 weeks restriction to change again as if you had done so yourself.
Using that logic, when a region needed to be given away, I asked the ruler to cede it away himself, so that if I got banned as I suspected I would, I could just hop back with my region. But as it is, I can't seem to do it, and the game tells me I need to wait 2 weeks, which obviously the ban will not allow.
So what is the intended behavior?