Prevent setting region to null from within L2Object.

L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/model/L2Object.java

@@ -153,7 +153,6 @@ public abstract class L2Object extends ListenersContainer implements IIdentifiab
 		_isSpawned = false;
 		L2World.getInstance().removeVisibleObject(this, _worldRegion);
 		L2World.getInstance().removeObject(this);
-		setWorldRegion(null);
 		return true;
 	}
 	
@@ -231,16 +230,12 @@ public abstract class L2Object extends ListenersContainer implements IIdentifiab
 	
 	public final boolean isSpawned()
 	{
-		return _worldRegion != null;
+		return _isSpawned;
 	}
 	
 	public final void setSpawned(boolean value)
 	{
 		_isSpawned = value;
-		if (!_isSpawned)
-		{
-			setWorldRegion(null);
-		}
 	}
 	
 	@Override

L2J_Mobius_CT_2.6_HighFive/java/com/l2jmobius/gameserver/model/actor/L2Character.java

@@ -2419,6 +2419,10 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 		{
 			getAI().stopAITask();
 		}
+		
+		// Set world region to null.
+		setWorldRegion(null);
+		
 		return true;
 	}