Translate the following English sentence to French:
"Moreover, the beneficiaries of family reunification are not just the applicant's spouse and children under 18, but also the unmarried partner who is in a stable relationship with the applicant, which will include homosexual couples when the Member State' s legislation treats them in the same way as married couples for legal purposes."
Par ailleurs, les bénéficiaires du regroupement familial ne sont pas simplement le conjoint et les enfants mineurs du regroupant, mais aussi le "partenaire non marié qui a une relation durable avec le regroupant", ce qui inclut les couples homosexuels lorsque la législation de l' État membre les assimile aux couples mariés.