(svn r22693) -Fix [FS#4691]: The override managers were not reset in some cases like creating a new scenario.

src/misc.cpp

@@ -14,6 +14,7 @@
 #include "news_func.h"
 #include "ai/ai.hpp"
 #include "ai/ai_gui.hpp"
+#include "newgrf.h"
 #include "newgrf_house.h"
 #include "group.h"
 #include "economy_func.h"
@@ -70,6 +71,8 @@ void InitializeGame(uint size_x, uint size_y, bool reset_date, bool reset_settin
 
 	PoolBase::Clean(PT_NORMAL);
 
+	ResetPersistentNewGRFData();
+
 	InitializeSound();
 	InitializeMusic();