修复bug

src/WMS.Web.Api/Controllers/SysConfigController.cs

@@ -327,6 +327,8 @@ namespace WMS.Web.Api.Controllers
             List<PullDownStrResponse> pullList = new List<PullDownStrResponse>();
             foreach (var c in customers.Data.Where(w => w.Name.Contains(name)))
             {
+                //排除重复的code
+                if (pullList.Where(f => f.Code == c.Number).Any()) continue;
                 pullList.Add(new PullDownStrResponse()
                 {
                     Id = c.Id.ToString(),