Thanks for the report, dcresap.
What happened what that your opponent had played Overlord, choose to play Workshop with it, then choose to play Workshop using Way of the Turtle (which isn't working likey they thought it would, they don't gain the Workshop).
It's known that playing cards that don't move to play (like the Workshop played by Overlord) using Ways may permanently put the Way's image on it, as has happened here.