Question juridique clé
Whether the Obergericht violated the cantonal constitution by refusing an appeal against the evidentiary order
Solution extraite
No violation was shown, because the Obergericht decided only on the appealability of an interlocutory evidentiary ruling, not on the appealability of the main judgment.
Motifs extraits
The constitutional provision guaranteeing review in civil cases concerns the main dispute; a negative ruling on a preliminary evidentiary question does not determine the appealability of the final merits judgment.