Kernrechtsfrage
Whether the appeal against the cantonal remand decision was admissible under Art. 93 BGG.
Extrahierter Entscheid
The challenged remand ruling was an interim decision; the appeal was admissible only if an irreparable legal disadvantage existed, which was not the case.
Extrahierte Begründung
A decision on party costs in a remand judgment is also an interim decision. The appellant can challenge the cost issue later together with the final decision, so no irreparable disadvantage arises.