Wills made in a foreign country may not be executed on property situated in France until they have been registered at the office of the testator’s domicile, if he has retained one, otherwise at the office of his last known domicile in France; and, in the event that the will contains dispositions of immovables situated there, it must, in addition, be registered at the office of the location of these immovables, without a double fee being required.