Questione giuridica chiave
Whether the appellant could seek relief on behalf of A.________ in the reform appeal
Decisione estratta
The appeal could not be brought on behalf of A.________, because he was not adversely affected by the cantonal judgment and the appellant could not act for him.
Motivazione estratta
The cantonal court had dismissed the claim against A.________, so he had no legal detriment from the challenged judgment.