Kernrechtsfrage
Whether the appeal in public law matters was admissible despite the immigration exception.
Extrahierter Entscheid
The appeal was admissible insofar as the appellant plausibly invoked a possible right under Art. 50 AuG, but not against the cantonal appeal decision or the underlying first-instance order because of the devolutive effect.
Extrahierte Begründung
A colorable claim to a residence right is enough for standing; however, relief cannot directly target superseded lower decisions.