(b) intervened in the proceeding or taken any other step relating to the merits. However, if the State satisfies the court that it could not have acquired knowledge of facts on which a claim to immunity can be based until after it took such a step, it can claim immunity based on those facts, provided it does so at the earliest possible moment.
2. 一国不应被视为同意另一国的法院行使管辖权，如果该国仅为下列目的介入诉讼或采取任何其他步骤：