Question juridique clé
Whether the complaints against the Schätzungskommission judgment were admissible, including standing and mootness for former owners A.___.
Solution extraite
The complaints were admissible in general, but A.___'s challenge to the dismissal of their own complaint was unfounded because their standing had lapsed during the proceedings.
Motifs extraits
Current and formally affected landowners had standing. A.___'s solidarity liability expired during the case; the lower court correctly struck their complaint as moot. They could not continue the case for the new owners.