Questione giuridica chiave
Whether the appeal against the cantonal decision confirming provisional mechanics' lien registration is admissible
Decisione estratta
The decision allowing provisional registration is an interim decision, not a final one; the appeal is therefore inadmissible in the absence of a challengeable decision.
Motivazione estratta
Under established case law, refusal of provisional registration is final, whereas approval of provisional registration is an interim decision that does not satisfy Art. 93 BGG requirements for immediate appeal.