Kernrechtsfrage
Whether the underlying transfer and payment contract for the municipal bond claims was void for lack of municipal and cantonal approvals
Extrahierter Entscheid
No reviewable federal-law error: the lower court's finding that the contract was valid and not void is binding.
Extrahierte Begründung
The question turned on cantonal law and the lower court's finding of validity barred a non-existence claim under Art. 171 OR.