After eating a food, another will automatically be eaten without pressing any button. (This can happen to any food) I expected to only eat one food, and while it was still selected in my hot-bar, I had eaten another one without holding down RMB (Right Mouse Button).

You can reproduce this by (Doesn't happen every time):

1. Eating a selected food in the hot-bar
2. Keeping the food selected in the hot-bar, without eating it
3. Sometimes, it will automatically eat the food