guards and siege engines ignore idle state with no players loaded

src/engine/mobileAI/MobAI.java

@@ -582,7 +582,8 @@ public class MobAI {
             boolean bypassLoadedPlayerCheck = false;
             if(mob.isPlayerGuard() || mob.isSiege()) {
                 bypassLoadedPlayerCheck = true;
-                if(mob.combatTarget != null && !mob.playerAgroMap.containsKey(mob.combatTarget.getObjectUUID()) && mob.combatTarget.getObjectType().equals(Enum.GameObjectType.PlayerCharacter))
+                if(mob.combatTarget != null && mob.combatTarget.getObjectType().equals(Enum.GameObjectType.PlayerCharacter))
+                    if(mob.combatTarget.loc.distanceSquared(mob.loc) > 10000)
                         mob.setCombatTarget(null);
             }