- [ ] I have searched the [issues](https://github.com/vueComponent/ant-design-vue/issues) of this repository and believe that this is not a duplicate. ### Version 3.2.6 ### Environment vue 3.2.37 ### Reproduction link [](https://codesandbox.io/s/biao-qian-ant-design-vue-3-2-8-forked-k5c0w7?file=/src/demo.vue) ### Steps to reproduce 1. 选中节点,设置searchValue="" 2. 输入搜索值,placeholder还在 ### What is expected? 希望效果跟autoClearSearchValue=true一样 ### What is actually happening? 搜索值与placeholder重叠 <!-- generated by issue-helper. DO NOT REMOVE -->