无忧运费险->【理赔接口】理赔成功code、msg、is_home_pick_up 均已返回，为何单独 report_no没有返回？？？

"order_no":"4200002297202407152910490783" policy_no:10524079400708890318 {"errcode":0,"errmsg":"ok","report_no":"","is_home_pick_up":0}