Question juridique clé
Whether the bankruptcy administration could revoke the Art. 260 SchKG assignments to D.________ and E.________ after those creditors transferred their bankruptcy claims to X.________ AG.
Solution extraite
The assignments became ineffective; X.________ AG could not succeed to the assigned litigation rights against itself, so the revocation decisions were only declaratory.
Motifs extraits
A transfer of the bankruptcy claim carries the Art. 260 litigation right, but an assignment of that right to the debtor of the assigned claim is void. The same bar applies to succession into an assignment already issued to others.