Question juridique clé
Whether the public law appeal was admissible against the cantonal refusal of a provisional artisan lien
Solution extraite
The appeal was, in principle, admissible as a public law remedy against a non-final decision, but only insofar as adequately reasoned under Art. 90 OG.
Motifs extraits
A refusal of provisional registration of an artisan lien is not a final decision for the ordinary appeal on the merits, but may be challenged by public law appeal; however, the appellant must specifically substantiate constitutional violations.