What I expected to happen was...:

Trying to add food to a campfire that already has 4 food items should cause the player to try eating the food (if hunger bar isn't full) or do nothing (if hunger bar is full).

What actually happened was...: 

Food was deleted one item at a time with the sound effect of eating but food bar was full.

Steps to Reproduce:

1. Put 4 raw food on campfire.

2. Try to put more food on campfire (with full food bar)