Questão jurídica principal
Whether the federal complaint was validly filed on behalf of the GmbH in liquidation despite Y.________ acting alone.
Decisão extraída
No. The company required joint representation by the authorized shareholders; Y.________ alone was not authorized to represent it.
Fundamentação extraída
The complaint was filed under the company's name, not in Y.________'s personal capacity. The cantonal findings on the register-based representation rules were uncontested, and no basis was shown for sole representation or for depriving the other shareholder of representation rights.