This is maybe for all snapshots with the campfire and it is maybe more of a feedback than a actual bug, but the campfire don't burn items if you throw them as lava would. Lava burn the item and you don't get it back, the campfire don't burn it. I feel like it should.
Just throw something on the campfire and you will see what I mean.
Blatantly WAI; how would you get items from cooking on the campfire if they get burned?