修复字典管理新增值时is_value错误的bug

backend/dvadmin/utils/import_export_mixin.py

@@ -308,7 +308,7 @@ class ExportSerializerMixin:
             async_export_data.delay(
                 data,
                 str(f"导出{get_verbose_name(queryset)}-{datetime.datetime.now().strftime('%Y%m%d%H%M%S')}.xlsx"),
-                DownloadCenter.objects.create(creator=request.user, task_name=f'{get_verbose_name(queryset)}数据导出任务', dept_belong_id=request.user.dept).pk,
+                DownloadCenter.objects.create(creator=request.user, task_name=f'{get_verbose_name(queryset)}数据导出任务', dept_belong_id=request.user.dept_id).pk,
                 self.export_field_label
             )
             return SuccessResponse(msg="导入任务已创建，请前往‘下载中心’等待下载")