Question juridique clé
Whether the appeal against the cantonal remand decision was admissible under Art. 93 BGG.
Solution extraite
The appellants did not show that the remand decision could cause irreparable harm or would immediately lead to a final decision saving extensive evidence-taking.
Motifs extraits
A remand decision is an interlocutory decision; self-standing review is exceptional and must be specifically demonstrated. The appellants' general assertions about standing and costly evidence were insufficient.