You can "equip" horse armor and wolf armor by right clicking while holding it and it vanishes

When you right click while holding horse armor or wolf armor, you can prompt an equipping action like you can with regular armor; however, since it is not a player armor piece, it just vanishes into nothing.

Steps to Reproduce:

1. Obtain a horse armor (material doesn't matter) or wolf armor
2. Put it in a hotbar slot
3. Select it and right click
   • Observed: Item "equips" but vanishes
   • Expected: it does nothing