fix: Menu not support React.Fragment (#26656)

* fix: Menu support React.Fragment

* chore: tweak menu demo

* fix: React key warning

components/menu/__tests__/index.test.js

@@ -24,6 +24,26 @@ describe('Menu', () => {
     </Menu>
   ));
 
+  mountTest(() => (
+    <Menu>
+      <Menu.Item />
+      <>
+        <Menu.ItemGroup />
+        <Menu.SubMenu />
+        {null}
+      </>
+      <>
+        <Menu.Item />
+      </>
+      {undefined}
+      <>
+        <>
+          <Menu.Item />
+        </>
+      </>
+    </Menu>
+  ));
+
   rtlTest(() => (
     <Menu>
       <Menu.Item />

components/menu/demo/horizontal.md

@@ -39,7 +39,7 @@ class App extends React.Component {
         <Menu.Item key="app" disabled icon={<AppstoreOutlined />}>
           Navigation Two
         </Menu.Item>
-        <SubMenu icon={<SettingOutlined />} title="Navigation Three - Submenu">
+        <SubMenu key="SubMenu" icon={<SettingOutlined />} title="Navigation Three - Submenu">
           <Menu.ItemGroup title="Item 1">
             <Menu.Item key="setting:1">Option 1</Menu.Item>
             <Menu.Item key="setting:2">Option 2</Menu.Item>

components/table/hooks/useFilter/FilterDropdown.tsx

@@ -34,21 +34,22 @@ function renderFilterItems({
   locale: TableLocale;
 }) {
   if (filters.length === 0) {
-    // wrapped with <></> to avoid react warning
+    // wrapped with <div /> to avoid react warning
     // https://github.com/ant-design/ant-design/issues/25979
     return (
-      <>
+      <div
+        style={{
+          margin: '16px 0',
+        }}
+      >
         <Empty
           image={Empty.PRESENTED_IMAGE_SIMPLE}
           description={locale.filterEmptyText}
-          style={{
-            margin: '16px 0',
-          }}
           imageStyle={{
             height: 24,
           }}
         />
-      </>
+      </div>
     );
   }
   return filters.map((filter, index) => {

package.json

@@ -128,7 +128,7 @@
     "rc-image": "~3.0.6",
     "rc-input-number": "~6.0.0",
     "rc-mentions": "~1.4.0",
-    "rc-menu": "~8.5.2",
+    "rc-menu": "~8.6.1",
     "rc-motion": "^2.0.0",
     "rc-notification": "~4.4.0",
     "rc-pagination": "~3.0.3",