Questão jurídica principal
Whether the cantonal appeal against the expert-opinion order was admissible under Art. 93(1)(a) BGG due to irreparable legal harm
Decisão extraída
No irreparable legal harm was shown; the appeal against the procedural order was therefore not admissible.
Fundamentação extraída
The contested expert-opinion order could still be reviewed indirectly in the final divorce judgment. Any disadvantage from the expert report is generally factual and can be corrected later; the child-custody report is only one piece of evidence among several.