Aminals drop raw items when killed on campfire

When an animal dies on top of a campfire, it drops the raw version of its food instead of the cooked version like when it dies in a regular fire.

How to reproduce:

1. Make a new flatland creative world.
2. Grab Campfire, Pig Spawn Egg, and Cow Spawn Egg.
3. Place a Campfire on the ground.
4. Spawn the mobs on top of it.
5. Watch them die and drop raw items.