UObject overwritten and saved during runtime

Development Programming & Scripting
1

Hi.
I created custom asset type.

Dialog.h

UCLASS(BlueprintType, Blueprintable, EditInlineNew)
class DIALOGSYSTEM_API UDialog : public UObject
{
	GENERATED_BODY()

public:
	UFUNCTION(BlueprintCallable, Category = "Dialog Object")
		FName GetSpeaker(int id);

	UFUNCTION(BlueprintCallable, Category = "Dialog Object")
		FText GetText(int id);

	UFUNCTION(BlueprintCallable, Category = "Dialog Object")
		ELinkType GetType(int id);

	UFUNCTION(BlueprintCallable, Category = "Dialog Object")
		TArray <int> GetTransitionArray(int id);

	UFUNCTION(BlueprintCallable, Category = "Dialog Object")
		TArray <FTransitionConditions> GetArrayOfTransitionConditions(int id);

protected:
	UPROPERTY(EditAnywhere, Category = "My Object Properties")
		TArray <int> openedTransitionsList;

	UPROPERTY(EditAnywhere, Category = "My Object Properties")
		TArray <FLink> linkList;


private:

};

DialogFactory.cpp

UDialogFactory::UDialogFactory(const FObjectInitializer& ObjectInitializer) : Super(ObjectInitializer)
{
	UE_LOG(LogTemp, Warning, TEXT("Factory construct"));
	bCreateNew = true;
	bEditAfterNew = true;
	SupportedClass = UDialog::StaticClass();
}

UObject* UDialogFactory::FactoryCreateNew(UClass* Class, UObject* InParent, FName Name, EObjectFlags Flags, UObject* Context, FFeedbackContext* Warn)
{
	UE_LOG(LogTemp, Warning, TEXT("Factory create New"));
	auto NewObjectAsset = NewObject<UDialog>(InParent, Class, Name, Flags | RF_Transactional );
	return NewObjectAsset;
}

After

  1. In UserWidget create variable (UDialog Object Referens).
  2. Create asset of UDialog and assign it to variable (DialogContainer) in blueprint.
  3. In Blueprint called GetTransitionArray(int id)

277806-sqvrwtyffea.jpg

Function GetTransitionArray(int id) change openedTransitionsList in runtime

Dialog.cpp

TArray <int> UDialog::GetTransitionArray(int id)
{
	switch (linkList[id].type)
	{
	case ELinkType::LT_Phrase:
		return linkList[id].transition;
		break;
	case ELinkType::LT_Question:
		{
		for (auto iter = linkList[id].transition.begin(); iter != linkList[id].transition.end(); ++iter)
		{
			openedTransitionsList.AddUnique(*iter);
		}
		return openedTransitionsList;
		}
		break;
	case ELinkType::LT_SpecialQuestion:
		return linkList[id].transition;
		break;
	case ELinkType::LT_Answer:
		return linkList[id].transition;
		break;
	}
	return TArray <int>();
}

Problem:
Changes made to the array (openedTransitionsList) in runtime SAVED in asset. The next time you start the array will be filled to the beginning.

Question: Why? And how to fix it? Why doesn’t blueprint create copy of asset for runtime?