fix(接口测试): 修复引用用例内容不能及时同步问题

--bug=1010394 --user=赵勇 【接口测试】场景引用带文档结构断言的case，断言内容没显示 https://www.tapd.cn/55049933/s/1105923

frontend/src/business/components/api/automation/scenario/EditApiScenario.vue

@@ -1149,7 +1149,7 @@ export default {
       if (!request.url) {
         request.url = "";
       }
-      if (referenced === 'REF' || !request.hashTree) {
+      if (!request.hashTree) {
         request.hashTree = [];
       }
       if (this.selectedTreeNode !== undefined) {