I forgot to take screenshots of this, but this happened yesterday.
I found a wild wolf and sent him on a hunt with my other wolves
I forgot he was on a hunt and decided to sell him on the Flea Market.
He sold and I got the payment for the sale
I then went back to hunting to complete the Hunt and the wolf still received EXP even though I was no longer the owner of it. I assume this is an oversite. Wolf on a hunt probablly shouldn't be sellable until they finish the hunt to avoid this. It's a harmless bug, but a bug nonetheless.