Key legal question
Whether the public law appeal was admissible despite subsidiarity and the cassatory nature of the remedy
Extracted holding
The appeal was inadmissible insofar as it raised issues that belonged to the parallel nullity of federal-law review; it remained admissible only against the alleged arbitrariness in interpreting the contract clause.
Extracted reasoning
Arbitrary application of federal law must generally be raised by reform appeal when that remedy is available; the public law appeal is subsidiary and purely cassatory under the OG.