Questão jurídica principal
Whether the cantonal decision could be attacked by nullity complaint for allegedly exceeding the reservation of federal law under Art. 695 CC.
Decisão extraída
The complaint could not succeed because the cantonal judgment rested on an additional independent ground concerning Art. 685 CC, which was not properly challenged.
Fundamentação extraída
Where a decision is based on two independent reasons, both must be attacked. A nullity complaint cannot review direct application of federal law, and the parallel constitutional complaint did not address Art. 685 CC.