Key legal question
Whether the public law appeal was admissible against the cantonal ruling insofar as it annulled and remanded the maintenance decision for the period after 2003-04-15.
Extracted holding
That part of the cantonal ruling was an incident decision not subject to public law appeal absent irreparable harm, which the appellant did not show.
Extracted reasoning
A remand order is merely an intermediate step before the final decision; because no irreparable prejudice was alleged, the challenge to that part of the ruling could not be heard.