修复小微主体修改商户名称暂存时暂存箱列表显示商户名不匹配问题

Areas/Api/Controllers/Main/MerchantAddInfoController.cs

@@ -223,6 +223,10 @@ namespace MySystem.Areas.Api.Controllers.v1
                 {
                     Fields.Add("CertMerchantName", CertMerchantName);
                 }
+                else
+                {
+                    CertMerchantName = MerchantInfoService.Query(MerchantAddInfoId).Name;
+                }
             }
             // var ActivitiesId = "20191030111cff5b5e";
             // var ActivitiesRate = "0.38";