Questão jurídica principal
Whether the Obergericht violated the right to be heard by referring to earlier judgments and not addressing all arguments in detail.
Decisão extraída
The reasoning was sufficient: the court dealt with the new agreement argument and could refer to identified prior judgments on the same contractual scope questions.
Fundamentação extraída
Article 29(2) BV requires a decision to address the essential issues, not every argument. Reference to accessible earlier judgments was permissible and allowed meaningful challenge.