missionMoveTransporterOffWorld: Clear additional state

src/mission.cpp

@@ -1813,6 +1813,13 @@ void missionMoveTransporterOffWorld(DROID *psTransporter)
 		//stop the droid moving - the moveUpdate happens AFTER the orderUpdate and can cause problems if the droid moves from one tile to another
 		moveReallyStopDroid(psTransporter);
 
+		// clear targets / action targets
+		setDroidTarget(psTransporter, nullptr);
+		for (int i = 0; i < MAX_WEAPONS; i++)
+		{
+			setDroidActionTarget(psTransporter, nullptr, i);
+		}
+
 		//if offworld mission, then add the timer
 		//if (mission.type == LDS_MKEEP || mission.type == LDS_MCLEAR)
 		if (missionCanReEnforce() && psTransporter->player == selectedPlayer)