Question juridique clé
Whether an heir certificate could be issued to the respondents after a prior binding ruling on their heir status.
Solution extraite
Yes. The prior separate ruling on heir status was binding, and the respondents still had a legitimate interest in an heir certificate as a practical proof of legitimacy.
Motifs extraits
The court held that a self-standing preliminary ruling becomes binding within the same proceedings and cannot be reopened later. Article 559 ZGB does not bar issuing an heir certificate after a judgment determining heir status; such a judgment merely provides a valid proof of entitlement.