Kernrechtsfrage
Whether the municipality had standing to bring a public-law appeal in the harmonized property gains tax matter.
Extrahierter Entscheid
The municipality lacked standing under Art. 73 StHG and Art. 89(2)(d) BGG because Bern law does not expressly authorize a municipal appeal to the Federal Supreme Court.
Extrahierte Begründung
In harmonized tax matters, only the persons and authorities named by Art. 73(2) StHG may appeal. Bern law grants municipalities lower-instance remedies, but not a federal appeal right.