Kernrechtsfrage
Whether the creditor is a party entitled to contest the debtor's complaint over competency claims in a retention inventory under Art. 283 SchKG.
Extrahierter Entscheid
Yes. The creditor is the main interested party and may oppose the debtor's competency claims.
Extrahierte Begründung
The cantonal authority erred in treating the creditor as non-party. Because the creditor is directly affected by the release of retained items, he must be allowed to challenge the debtor's claims and have them decided on the merits.