Fix missing initialization of scene objects added from prefab

#1924

Source/Engine/Level/Level.cpp

@@ -1064,6 +1064,7 @@ bool Level::loadScene(rapidjson_flax::Value& data, int32 engineBuild, Scene** ou
                 }
             }
         }
+        prefabSyncData.InitNewObjects();
     }
 
     // /\ all above this has to be done on an any thread

Source/Engine/Level/SceneObjectsFactory.cpp

@@ -403,6 +403,15 @@ SceneObjectsFactory::PrefabSyncData::PrefabSyncData(Array<SceneObject*>& sceneOb
 {
 }
 
+void SceneObjectsFactory::PrefabSyncData::InitNewObjects()
+{
+    for (int32 i = 0; i < NewObjects.Count(); i++)
+    {
+        SceneObject* obj = SceneObjects[InitialCount + i];
+        obj->Initialize();
+    }
+}
+
 void SceneObjectsFactory::SetupPrefabInstances(Context& context, const PrefabSyncData& data)
 {
     PROFILE_CPU_NAMED("SetupPrefabInstances");

Source/Engine/Level/SceneObjectsFactory.h

@@ -78,6 +78,7 @@ public:
         ISerializeModifier* Modifier;
 
         PrefabSyncData(Array<SceneObject*>& sceneObjects, const ISerializable::DeserializeStream& data, ISerializeModifier* modifier);
+        void InitNewObjects();
 
     private:
         struct NewObj