Enforcement of swap contracts containing arbitration clauses against guarantors. Principal debtors under court-supervised reorganisation. Challenge to a credit claim in the court-supervised reorganisation proceedings that led to the commencement of an arbitration proceeding against the principal debtors and guarantors. Stay of the enforcement action and of the corresponding challenge by the court-supervised reorganisation court pending the judgment of the arbitration proceeding (Articles 791 and 265, IV, a, of the Code of Civil Procedure):