fix(接口测试): 修复未写场景名时，执行单步骤时，一直显示执行的缺陷

--bug=1025964 --user=王孝刚 【接口测试】新建场景-添加csv场景变量-单步骤调试失败引用csv文件失败
https://www.tapd.cn/55049933/s/1376003

api-test/frontend/src/business/automation/scenario/EditApiScenario.vue

@@ -1803,6 +1803,11 @@ export default {
           this.initMessageSocket();
         } else {
           this.debugLoading = false;
+          let hasRequest = runScenario && runScenario.hasRequest;
+          if (hasRequest  && runScenario.hashTree) {
+            runScenario.hashTree[0].requestResult = [];
+            runScenario.hashTree[0].testing = false;
+          }
         }
       });
     },