UDeveloperSettings change delegate not executed on import

From UDN case #00655218:

We extensively use the UDeveloperSettings class to automatically register project and editor settings for the different C++ plugins we build. For instance :

UCLASS(config = EditorPerProjectUserSettings)
class UMyPluginSettings : public UDeveloperSettings
{
GENERATED_BODY()

public: // Parent interface

FName GetCategoryName() const override;

#if WITH_EDITOR

FText GetSectionText() const override;
FName GetSectionName() const override;

#endif // WITH_EDITOR

public: // Properties

/** A toggle for my plugin */
UPROPERTY(config, EditAnywhere)
bool bMyPluginToggle

;
};

When a setting changes, our plugin is notified thanks to the OnSettingChanged() delegate. This works well when the user edits or resets a value, but that delegate is not executed when settings are imported from an external INI file.

Is there a way to get notified on settings import ?

Thank you for your help