The loss of French nationality takes effect:
1° In the case provided for in article 23 at the date of acquisition of foreign nationality;
2° In the case provided for in Articles 23-3 and 23-5 on the date of the declaration;
3° In the case provided for in Articles 23-4, 23-7 and 23-8 on the date of the decree;
4° In the cases provided for in Article 23-6 on the day set by the judgment.