Kernrechtsfrage
Whether the appellants were denied the right to be heard by the lower courts' reasoning on solidarity and standing
Extrahierter Entscheid
No violation of the right to be heard was shown; the reasoning was sufficient to permit an appeal and was not unexpectedly based on contract-law solidarity rules.
Extrahierte Begründung
The lower court explained that B.________ acted for his company and could therefore be treated as jointly liable; even if Art. 403(2) CO were debated, the general solidarity rules for joint contractual liability would lead to the same result.