Update siege flags when fort owner loses fort.

Contributed by Sahar.

L2J_Mobius_CT_2.4_Epilogue/java/org/l2jmobius/gameserver/model/entity/Fort.java

@@ -395,6 +395,10 @@ public class Fort extends AbstractResidence
 			{
 				LOGGER.log(Level.WARNING, "Exception in setOwner: " + e.getMessage(), e);
 			}
+			if (getSiege().isInProgress())
+			{
+				getSiege().updatePlayerSiegeStateFlags(true);
+			}
 			removeOwner(true);
 		}
 		setFortState(0, 0); // initialize fort state