Questione giuridica chiave
Whether the reform appeal against the cantonal interlocutory decision on territorial jurisdiction was admissible
Decisione estratta
The appeal was admissible only insofar as it challenged the federal-law rules on jurisdiction under Art. 3 PILA.
Motivazione estratta
The attacked decision was interlocutory, but a reform appeal lies against a separate pre-judgment decision when federal jurisdiction rules are invoked.