SPIGOT-6097: Zoglins not attacking mobs

By: md_5 <git@md-5.net>

paper-server/nms-patches/BehaviorAttackTargetForget.patch

@@ -18,7 +18,7 @@
      private void d(E e0) {
 +        // CraftBukkit start
 +        EntityLiving old = e0.getBehaviorController().getMemory(MemoryModuleType.ATTACK_TARGET).orElse(null);
-+        EntityTargetEvent event = CraftEventFactory.callEntityTargetLivingEvent(e0, old, (old != null && !old.isAlive()) ? EntityTargetEvent.TargetReason.TARGET_DIED : EntityTargetEvent.TargetReason.FORGOT_TARGET);
++        EntityTargetEvent event = CraftEventFactory.callEntityTargetLivingEvent(e0, null, (old != null && !old.isAlive()) ? EntityTargetEvent.TargetReason.TARGET_DIED : EntityTargetEvent.TargetReason.FORGOT_TARGET);
 +        if (event.isCancelled()) {
 +            return;
 +        }