Sync with L2jServer HighFive Mar 3rd 2016.

trunk/java/com/l2jmobius/gameserver/ai/L2AttackableAI.java

@@ -1771,6 +1771,10 @@ public class L2AttackableAI extends L2CharacterAI implements Runnable
 		double dist = 0;
 		double dist2 = 0;
 		int range = 0;
+		if (getAttackTarget() == null)
+		{
+			return;
+		}
 		try
 		{
 			if (npc.getTarget() == null)

trunk/java/com/l2jmobius/gameserver/ai/L2PlayerAI.java

@@ -244,6 +244,7 @@ public class L2PlayerAI extends L2PlayableAI
 			return;
 		}
 		
+		clientStopMoving(null);
 		_actor.doAttack(target);
 	}