视频号小店获取售后单 这个接口中的 AfterSaleStatus 的哪个或者哪几个，是最终态、不会再变动？ [ {"value":"USER_CANCELD","text":"用户取消申请"}, {"value":"MERCHANT_PROCESSING","text":"商家受理中"}, {"value":"MERCHANT_REJECT_REFUND","text":"商家拒绝退款"}, {"value":"MERCHANT_REJECT_RETURN","text":"商家拒绝退货退款"}, {"value":"USER_WAIT_RETURN","text":"待买家退货"}, {"value":"RETURN_CLOSED","text":"退货退款关闭"}, {"value":"MERCHANT_WAIT_RECEIPT","text":"待商家收货"}, {"value":"MERCHANT_OVERDUE_REFUND","text":"商家逾期未退款"}, {"value":"MERCHANT_REFUND_SUCCESS","text":"退款完成"}, {"value":"MERCHANT_RETURN_SUCCESS","text":"退货退款完成"}, {"value":"PLATFORM_REFUNDING","text":"平台退款中"}, {"value":"PLATFORM_REFUND_FAIL","text":"平台退款失败"}, {"value":"USER_WAIT_CONFIRM","text":"待用户确认"}, {"value":"MERCHANT_REFUND_RETRY_FAIL","text":"商家打款失败，客服关闭售后"}, {"value":"MERCHANT_FAIL","text":"售后关闭"} ]

https://developers.weixin.qq.com/doc/channels/API/aftersale/ec_callback/channels_ec_aftersale_update.html EcAftersaleInfoStatus售后单状态中，哪一个是售后完成的状态。 （1）MERCHANT_REFUND_RETRY_FAIL 商家打款失败、客服关闭售后（2）MERCHANT_FAIL 售后关闭。这两个状态是售后了还是没售后