Supreme Court dismisses supplementary pension claim due to res judicata on employer liability absence.

The Supreme Court dismissed the plaintiff's claim for a supplementary pension, remanding the case to the lower court for a new ruling on costs. The lower court had previously rejected the claim for a specific period, citing a lack of civil liability grounds for the employer, but failed to explicitly determine if this constituted res judicata. The Supreme Court ruled that because the lower court did not definitively establish whether the prior judgment precluded liability for the new period, the claim was not barred by res judicata, yet the final decision in the provided text indicates the case was dismissed based on the lack of civil liability grounds found in the prior judgment.