When summoning or spawning Zombie Pigmen in snapshot 15w35a, nothing happens. They take no knockback and do not respond to a player in survival mode in any way. They just remain in the spot that they spawn in.
Environment
Windows 10.0
Java 1.8.0
When summoning or spawning Zombie Pigmen in snapshot 15w35a, nothing happens. They take no knockback and do not respond to a player in survival mode in any way. They just remain in the spot that they spawn in.
Windows 10.0
Java 1.8.0
Kinda goes into MC-87193 as zombies and zombie pigmen share similar AI.