Oh, right... well, the two FReqs are different.
Got this confused with the missing choiceadv on new hot dog choices. Wrong new content.
But still...
This New Content FReq (not Bug) is about adding an additional choice to the drop down lists.
Your FReq is about avoiding infinite recursion loops when you force them yourself, which you did since automatic handling for this choiceadv isn't currently supported yet, as per this FReq which is trying to get it officially supported. It's been expanded from just the Castle Top to making a general solution that will also fix Wumpus and Ruined City looping.