When you load a production queue which includes units which shouldn`t be buildable by the civ you are using, they are build anyway.
I use a production queue which includes some workers and when I loaded it today in a game playing Asoka the city actually built workers, not fast workers, so I played around with it and there you are:
Roman Fast Workers
and
Indian Praetorians
it actually seems to be working for all UUs
I use a production queue which includes some workers and when I loaded it today in a game playing Asoka the city actually built workers, not fast workers, so I played around with it and there you are:
Roman Fast Workers
and
Indian Praetorians
it actually seems to be working for all UUs