Questione giuridica chiave
Whether the constitutional complaint had to be treated as a civil-law appeal and was admissible against the cantonal interlocutory decision.
Decisione estratta
The filing, though labeled as a constitutional complaint, was treated as a civil-law appeal; the interlocutory decision was challengeable because it could cause irreparable harm.
Motivazione estratta
For interlocutory decisions the appellate route follows the main case. Since one main proceeding was a divorce action appealable in civil matters, civil-law appeal was available.