If you are part of a team with friendly fire off, drinking a potion with an instant damage effect deals no damage.
MC-124830
instant damage potions have no effect with friendly fire off
Resolved
Works As Intended
0
What did you expect to happen? Any source of damage from player action within a team is considered friendly fire, even damaging yourself. This includes potions of harming, which require player interaction to consume. Would you expect the same behavior if you threw a splash potion of harming? It would be an error if the player could damage themselves when friendly fire is off. Therefore, I believe this is WAI.