Kernrechtsfrage
Whether the appeal against the order granting supplementary expert evidence was admissible
Extrahierter Entscheid
The appeal was inadmissible because the challenged order could not cause irreparable harm and the party could later contest the probative value of the expert report in the merits proceedings.
Extrahierte Begründung
An order admitting supplementary expertise is an interlocutory decision appealable only if it may cause irreparable harm. That condition was not met here.