take_ownership on add_to_deck running original code

[Toneblock]

i don't know if this is intended but it was very convenient abusing an early return in calculate functions to avoid running a joker's original code, the same is impossible with add_to_deck related functions which makes properly taking ownership of jokers such as credit card/bean annoying without a messier workaround

maybe we could just check for a return true to return the function in Card.add_to_deck early?

[wingedcatgirl]

The canonical way of stopping vanilla calculations is to change the item's internal name (not key), which is what the vanilla functions all check against.

this is still kinda unintuitive and hard to remember though so a better method would be welcome