Key legal question
Whether the 14 March 2003 cantonal judgment was an enforceable title under Art. 80 LP for definitive release of opposition.
Extracted holding
No. The earlier judgment on liability was a prejudicial decision that did not become enforceable merely because no immediate federal appeal was filed; treating it as definitive title was arbitrary.
Extracted reasoning
A prejudicial ruling on a preliminary substantive issue becomes final only together with the final judgment if no immediate appeal is taken; optional immediate appeal rules do not oblige a party to use that route. Therefore the cantonal court misapplied Art. 80 LP.