The autoplay of Changeling is a bit broken:
Game #20699516 Turn 5, I gain an Inn and due to autoplay of Changeling the only option is to shuffle Actions from discard into deck.
However, I do have to make a choice, see attachment.
IIRC, this is a general limitation of the autoplay system: It only kicks in when the thing it should handle is the only thing that goes on at that moment. Not a problem for Young Witch/Bane, but if something else triggers from a gain besides Changeling (like here) it asks even though you told it not to.