Fix serialization

lib/serializer/CSerializer.h

@@ -14,7 +14,7 @@
 
 VCMI_LIB_NAMESPACE_BEGIN
 
-const ui32 SERIALIZATION_VERSION = 820;
+const ui32 SERIALIZATION_VERSION = 821;
 const ui32 MINIMAL_SERIALIZATION_VERSION = 820;
 const std::string SAVEGAME_MAGIC = "VCMISVG";
 

lib/spells/CSpellHandler.h

@@ -272,6 +272,8 @@ public:
 	template <typename Handler> void serialize(Handler & h, const int version)
 	{
 		h & identifier;
+		if (version > 820)
+			h & modScope;
 		h & id;
 		h & level;
 		h & power;