Key legal question
Whether the cantonal courts violated the right to be heard by refusing evidence on the amount the employee would receive in SAirGroup concordat proceedings.
Extracted holding
The complaint was inadmissible and, in any event, unfounded because the proposed fact was legally irrelevant; the employee did not have to deduct hypothetical future recoveries from another solidary debtor.
Extracted reasoning
A court need not take evidence on a fact that cannot affect the outcome. In a solidary-debt situation, the creditor may claim the full remaining performance from either debtor and only subtracts amounts already received, not future uncertain recoveries.