[GAMEPLAY] Can't undo a bought item if you get a biscuit while shopping.

Just happened to me this game to my suprise. Accidently bought the same item by reflex and was about to undo it before I have gotten a biscuit at the 6 or 9 minute mark. After that biscuit popped up, I couldn't undo my purchase.

For clarification: It happened to me while buying items when I was dead, so I don't know yet if this bug repeats itself if you are shopping while alive and in the fountain as well.

P.S: I don't have Ornn, but I think that this bug might also happen while he is shopping out of the fountain thanks to his passive as well.