In the event that, the extradition of a foreigner having been obtained by the French Government, the Government of a third country in turn requests the French Government to extradite the same individual on account of an act prior to the extradition, other than that tried in France, and not connected with that act, the Government shall, if necessary, accede to such request only after having ascertained the consent of the country by which the extradition was granted.
However, this reservation need not be applied where the person extradited has had, during the period fixed in Article 696-39, the opportunity to leave French territory.