Questão jurídica principal
Whether the federal appeal against the cantonal maintenance decision was admissible for review of constitutional rights only.
Decisão extraída
The appeal was admissible; the decision was final, concerned monetary claims above the federal threshold, and as a provisional measure could only be reviewed for violation of constitutional rights.
Fundamentação extraída
The Court found the cantonal remedies exhausted and noted the limited scope of review under Art. 98 BGG for precautionary measures.