Questão jurídica principal
Whether the appeal could be heard despite the cantonal judgment resting on two independent grounds, only one of which was challenged.
Decisão extraída
The appeal was inadmissible because the unchallenged subsidiary ground alone upheld dismissal of the claim.
Fundamentação extraída
When a decision rests on multiple independent, sufficient grounds, each must be challenged with the appropriate remedy; the appellant attacked only the main ground and not the subsidiary finding on lack of damage.