Kernrechtsfrage
Whether the cantonal court violated the right to be heard by not taking evidence on the amount the employee might receive from SAirGroup's concordat proceedings.
Extrahierter Entscheid
No constitutional violation was shown; the complaint was insufficiently reasoned and the requested evidence was irrelevant because the employee could claim full performance from each solidary debtor, subject only to amounts already received.
Extrahierte Begründung
The appeal did not specify any concrete evidence allegedly refused. In any event, the future concordat dividend from another alleged debtor was irrelevant to the respondent's claim against the appellant.