fix(接口测试): 场景调试偶发环境丢失问题

--bug=1014467 --user=赵勇 【接口测试】【偶发】github#15273，接口场景自动化调试问题 https://www.tapd.cn/55049933/s/1193088

frontend/src/business/components/api/automation/api-automation.js

@@ -109,7 +109,7 @@ export function editApiScenarioCaseOrder(request, callback) {
 }
 
 export function savePreciseEnvProjectIds(projectIds, envMap) {
-  if (envMap != null && projectIds != null) {
+  if (envMap != null && projectIds && projectIds.length > 0) {
     let keys = envMap.keys();
     for (let key of keys) {
       if (!projectIds.has(key)) {