Quoted from original text of #2140

Hi, I was planning to make a few reports but I've decided to make one for a few issues I've noted over a few last days while playing on Cereal Modpack (Modpack verrsion 1.0.3, TFC version 2.1.6, FirmaLife 1.1.7 - Mod list is available on CurseForge, however I can provide a list if needed).

When a mule had been fed and their HP isn't full shift-right clicking them with grain (Used 1x Rye Grain) causes them to instantly regenerate their health without consuming the item. This allows to heal the animal for free.

Issue is that the isHungry() check is performed on both client and server, client passes because the lastFed is always zero on client. This only affects visual health, and reverts to server value as soon as the horse is otherwise damaged.