Fix scene object reference serialization in C++ to use correct serializer

#3255

Source/Engine/Serialization/Serialization.cpp

@@ -790,14 +790,14 @@ void Serialization::Deserialize(ISerializable::DeserializeStream& stream, Matrix
     DESERIALIZE_HELPER(stream, "M44", v.M44, 0);
 }
 
-bool Serialization::ShouldSerialize(const SceneObject* v, const SceneObject* other)
+bool Serialization::ShouldSerializeRef(const SceneObject* v, const SceneObject* other)
 {
     bool result = v != other;
     if (result && v && other && v->HasPrefabLink() && other->HasPrefabLink())
     {
         // Special case when saving reference to prefab object and the objects are different but the point to the same prefab object
         // In that case, skip saving reference as it's defined in prefab (will be populated via IdsMapping during deserialization)
-        result &= v->GetPrefabObjectID() != other->GetPrefabObjectID();
+        result = v->GetPrefabObjectID() != other->GetPrefabObjectID();
     }
     return result;
 }