I just got gods and kings expansion pack and I'm not sure is it a bug or was this supposed to be that way than after I move my worker to a desired tile and then push "end turn", my worker can't do any action whatsoever on that tile while action is possible(like construct a road or a camp or a farm) until I move them to the next tile and then move him back. So is it supposed to be that way or is it a bug in the game or am I doing something wrong?