Question juridique clé
Whether the federal appeal against the cantonal remand judgment is admissible under Art. 90, 91 or 93 LTF.
Solution extraite
The remand decision is an incidental decision; the municipality failed to show irreparable harm or any other ground for immediate review, and there was no separable partial decision.
Motifs extraits
The cantonal court left room for the municipality to determine, after further findings, the provenance of the material and the possible involvement of additional contributors. The municipality retained broad discretion, so no irreparable legal detriment arose; a later appeal after the final municipal decision remained sufficient.