Legal basis: Article 559 of the Civil Code of People's Republic of China (PRC): When the creditor's rights and debts are extinguished, the subordinate rights of the creditor's rights shall be extinguished at the same time, unless otherwise stipulated by law or agreed by the parties.

Article 564 The time limit for exercising the right of revocation shall be prescribed by law or agreed by the parties. If the parties fail to exercise their rights at the expiration of the time limit, the rights shall be extinguished.

If the law does not stipulate or the parties have not agreed on the time limit for exercising the right of revocation, and the holder of the right of revocation knows or should know the reason for revocation and fails to exercise it within one year, or fails to exercise it within a reasonable period after being urged by the other party, the right shall be extinguished.

Article 576 Where the creditor's rights and debts belong to the same person, the creditor's rights and debts shall be extinguished, unless the interests of a third person are harmed.