发布v2.8.9版本，更新内容请查看：https://github.com/bufanyun/hotgo/blob/v2.0/docs/guide-zh-CN/start-update-log.md

web/src/components/CitySelector/citySelector.vue

@@ -72,7 +72,7 @@
   watch(
     () => props.value,
     async () => {
-      if (props.value === 0) {
+      if (!props.value || props.value === 0) {
         valueLabel.value = null;
         return;
       }