事情描述：调用了视频号自定义组件创建售后单号，怎么传参都会返回金额为空，是不是这个接口有问题还是没更新最新的文档

接口：https://api.weixin.qq.com/shop/aftersale/add

参数：{

    "out_order_id":"637976376446448955",

    "openid":"xxx",

    "out_aftersale_id":"AF637976376446448988",

    "path":"/pages/order.html?out_order_id=xxxxx",

    "refund":1,

    "type":2,

    "create_time":"2022-09-15 14:48:28",

    "status":0,

    "finish_all_aftersale":0,

    "product_infos":[

        {

            "out_product_id":"20000982",

            "out_sku_id":"20000982",

            "product_cnt":"1"

        }

    ]

}

返回结果：system error 系统错误,请稍后重试, detail: refund amount empty, should not happen