修复采购退库出现的错误

anrui-scm/anrui-scm-biz/src/main/java/com/yxt/anrui/scm/biz/scmvehiclereturn/ScmVehicleReturnService.java

@@ -96,14 +96,14 @@ public class ScmVehicleReturnService extends MybatisBaseService<ScmVehicleReturn
             }
         } else {
             //编辑
-            //验证数据是否可更改
-            if (checkCouldChange(sid)) {
-                return rb.setMsg("该条信息不可更改");
-            }
             ScmVehicleReturn scmVehicleReturn = fetchBySid(sid);
             if (scmVehicleReturn == null) {
                 return rb.setMsg("该申请不存在");
             }
+            //验证数据是否可更改
+            if (checkCouldChange(sid)) {
+                return rb.setMsg("该条信息不可更改");
+            }
             if (scmVehicleReturnDto.getDetailsList().size() == 0) {
                 return rb.setMsg("请选择需要退库的车辆");
             }