Deck's CardMapper::findAllByStack() filters on stack_id and archived only --
there is no deleted_at condition -- so getActiveCardsInStack() also returned
cards the user had deleted. They stay in the table until Deck's DeleteCron
purges them, which is long enough for an overdue one to get moved out of the
trash and back into a stack.
Patrick Niebeling
ee72d6fcf9