- [ ] 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 3.2.14 ### Environment "antd": "^5.2.0","vue": "^3.2.22","@vue/cli-plugin-vuex": "~4.5.0",windows10,chrome:版本 96.0.4664.110 ### Reproduction link [https://www.antdv.com/components/layout-cn#components-layout-demo-side](https://www.antdv.com/components/layout-cn#components-layout-demo-side) ### Steps to reproduce ```

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menuItems: [ { key: "index", title: "主页", icon: "home-outlined", }, { key: "task", title: "计划列表", icon: "task", }, { key: "game", title: "游戏", icon: "game", children: [ { key: "mineSweeping", title: "扫雷", icon: "", }, ], }, { key: "forum", title: "论坛", icon: "forum", }, { key: "information", title: "消息", icon: "bell-outlined", }, ], ``` ### What is expected? Displays normally as in the official site example --->https://www.antdv.com/components/layout-cn#components-layout-demo-side ### What is actually happening? In the collapsed state, the right list should be displayed as in the official example, but now the a-menu-item on the first level will hover properly, but the a-sub-menu (menuItem.children) on the second level will fail to display anything --- null

When a-layout-sider is in a collapsed state, the suspended window does not display properly #6271

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