Key legal question
Whether the appeal could be heard despite the cantonal judgment resting on two independent grounds, only one of which was challenged.
Extracted holding
The appeal was inadmissible because the unchallenged subsidiary ground alone upheld dismissal of the claim.
Extracted reasoning
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.