Question juridique clé
Admissibility of the federal complaints against the cantonal decision on costs
Solution extraite
The complaints were inadmissible because they relied on a new request for joinder and the cost decision could only be challenged together with the final decision in the main proceedings.
Motifs extraits
The appellant changed its request on appeal by linking the denial of costs to joinder, which was a new and inadmissible conclusion. In addition, the underlying appeal against the merits was still pending, so the costs ruling was only incidentally reviewable together with the final judgment.