Say I have a question and I award a bounty to an answer, but the answer gets deleted. According to this, my reputation as the one who awarded the bounty will not be refunded to me, and the reputation gained by the person who received the bounty will be nullified. So far so good.
But what happens if the answer is undeleted? Will the bounty amount be re-awarded to the person who posted the answer, or does deleting the answer permanently nullify that reputation?