Question juridique clé
Whether the cantonal judgment on the appointment of an expert could be appealed to the Federal Court under Art. 93 LTF
Solution extraite
The appeal was inadmissible insofar as it challenged material objections to the expert appointment, because those points do not involve a formal recusal ground and no irreparable harm was shown.
Motifs extraits
The court distinguished formal recusal grounds from material objections to the evidentiary value or credibility of the future expert report. Only formal recusal rulings may open immediate federal review of an interlocutory decision; the appellant did not show irreparable prejudice.