From acf224683d1f3d40f74b16b75a904f5719d240c3 Mon Sep 17 00:00:00 2001
From: frosch <frosch@openttd.org>
Date: Wed, 6 Aug 2008 19:00:31 +0000
Subject: (svn r14007) -Fix [FS#2098]: Notify vehicle windows when their
 internal state is botched up from outside.

---
 src/vehicle_gui.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/vehicle_gui.cpp')

diff --git a/src/vehicle_gui.cpp b/src/vehicle_gui.cpp
index 5170ce9f7..2f47f7261 100644
--- a/src/vehicle_gui.cpp
+++ b/src/vehicle_gui.cpp
@@ -642,7 +642,7 @@ static inline void ChangeVehicleWindow(WindowClass window_class, VehicleID from_
 	if (w != NULL) {
 		w->window_number = to_index;
 		if (w->viewport != NULL) w->viewport->follow_vehicle = to_index;
-		w->SetDirty();
+		if (to_index != INVALID_VEHICLE) InvalidateThisWindowData(w);
 	}
 }
 
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