Questione giuridica chiave
Whether the federal appeal against the cantonal revision decision remained justiciable after the underlying decision was annulled.
Decisione estratta
The appeal had become moot and had to be struck from the docket.
Motivazione estratta
Once the decision that formed the subject of the cantonal revision proceedings was set aside, there was no longer a live object for the federal appeal; under Art. 71 BGG in conjunction with Art. 72 BZP, the proceedings were to be discontinued.