Improve e7016564b1 to reduce recompilation on commit changes

Source/Engine/Serialization/ISerializeModifier.h

@@ -4,7 +4,6 @@
 
 #include "Engine/Core/Collections/Dictionary.h"
 #include "Engine/Core/Types/Guid.h"
-#include "FlaxEngine.Gen.h"
 
 /// <summary>
 /// Object serialization modification base class. Allows to extend the serialization process by custom effects like object ids mapping.
@@ -12,17 +11,18 @@
 class FLAXENGINE_API ISerializeModifier
 {
 public:
-
     /// <summary>
     /// Number of engine build when data was serialized. Useful to upgrade data from the older storage format.
     /// </summary>
-    uint32 EngineBuild = FLAXENGINE_VERSION_BUILD;
+    uint32 EngineBuild;
 
     // Utility for scene deserialization to track currently mapped in Prefab Instance object IDs into IdsMapping.
-    int32 CurrentInstance = -1;
+    int32 CurrentInstance;
 
     /// <summary>
     /// The object IDs mapping. Key is a serialized object id, value is mapped value to use.
     /// </summary>
     Dictionary<Guid, Guid> IdsMapping;
+
+    ISerializeModifier();
 };