Key legal question
Whether the chamber's competence ruling was an immediately appealable incident decision.
Extracted holding
No; under the cantonal procedure, refusal or admission of jurisdiction can only be challenged together with the merits decision, so no immediately appealable formal incident decision existed.
Extracted reasoning
Cantonal law required the tribunal to note the objection and address the merits, with reasons given only in the final judgment. Federal law did not create a right to a separate formal competence decision in this labour context, which must remain simple and rapid.