Questione giuridica chiave
Whether the public-law appeal against the cantonal decision was admissible against the first-instance judgment as well as the appellate judgment.
Decisione estratta
The appeal was admissible only against the last cantonal-instance decision; the challenge to the first-instance judgment was inadmissible.
Motivazione estratta
Only the final cantonal decision could be attacked, and the appellate court had full review power and allowed nova; therefore a separate attack on the lower judgment did not meet the requirements for direct federal review.