服务商模式下，调用查询订单接口，接口参数传入了sub_appid,但返回值sub_openid为空。已经确认的是，该用户使用过付款码支付和小程序支付。且在小程序支付后，通过查询订单发现，返回的openid与小程序的openid不符，返回值如下：

{
	"transaction_id": "4200000498201912316294626437",
	"nonce_str": "wzF6v7xsHDJQJzVH",
	"trade_state": "SUCCESS",
	"bank_type": "CMB_CREDIT",
	"openid": "oAT3B51FsOTJ4DXcFUiOv7gU8E-4",
	"sign": "912D9F22B5FDCA2E0DA997FA41969152",
	"return_msg": "OK",
	"fee_type": "CNY",
	"mch_id": "****",
	"sub_mch_id": "***",
	"cash_fee": "300",
	"out_trade_no": "CPRP749065074",
	"cash_fee_type": "CNY",
	"appid": "****",
	"total_fee": "300",
	"trade_state_desc": "支付成功",
	"trade_type": "NATIVE",
	"result_code": "SUCCESS",
	"attach": "",
	"time_end": "20191231141141",
	"is_subscribe": "Y",
	"return_code": "SUCCESS"
}