Case C-769/18: Judgment of the Court (Eighth Chamber) of 12 March 2020 (request for a preliminary ruling from the Cour de cassation — France) — Caisse d’assurance retraite et de la santé au travail d’Alsace-Moselle v SJ, Ministre chargé de la Sécurité sociale (Reference for a preliminary ruling — Social security for migrant workers — Regulation (EC) No 883/2004 — Article 5(b) — Increase in the rate for old-age pensions — Taking into account of the allowance paid in respect of the raising of a disabled child in another Member State — Principle of equal treatment of facts)