Questão jurídica principal
Whether the public law appeal sufficiently challenged the cantonal court's alternative ground based on abuse of rights.
Decisão extraída
The appeal was inadmissible because it did not attack the independent subsidiary reasoning on abuse of rights.
Fundamentação extraída
When a decision rests on multiple independent grounds, each sufficient to support the result, every ground must be challenged with the appropriate remedy. The appellant only disputed the subjective interpretation and did not address the alternative abuse-of-rights reasoning.