Questão jurídica principal
Whether the reform appeal could challenge the cantonal ruling on the timeliness of opposition to the default judgment.
Decisão extraída
The appeal was inadmissible because the cantonal courts only decided the timeliness of the opposition, not the merits of the claim.
Fundamentação extraída
The Federal Tribunal could not examine the substantive debt dispute; the case record did not allow review of the underlying claim.