Assume a European Union citizen who is not a citizen of France has moved to France for a period longer than 90 days, with his or her spouse. The spouse is not an EU citizen, and has received a carte de séjour «membre de la famille d'un citoyen de l'Union» with a validity of five years.
The couple leave France after a year. Three years later, they return. Is the carte de séjour still valid?
If not, when did it lose its validity, and why?