Kernrechtsfrage
Whether the creditor could introduce new facts and evidence on federal appeal after the cantonal authority decided an unpleaded issue ex officio.
Extrahierter Entscheid
Yes, because the cantonal authority ruled on the debtor’s domicile without giving the creditor an opportunity to address that question below.
Extrahierte Begründung
The creditor had not been heard on the domicile issue in the cantonal proceedings, so new facts and documents were admissible on appeal under the applicable procedural rules.