RadioMenuFlyoutItem'GroupName property is globally exclusive.

[shelllet]

Describe the bug

<Button Grid.Row="0" Content="{x:Bind Header, Converter={StaticResource StringConverter}}">
  <Button.Flyout>
      <MenuFlyout>
          <RadioMenuFlyoutItem x:Uid="InputFlyoutItem/Actions" Text="Actions" IsChecked="{x:Bind ActionChecked, Mode=TwoWay}" GroupName="SelectionGroup"/>
          <RadioMenuFlyoutItem x:Uid="InputFlyoutItem/Expression" Text="Expression" IsChecked="{x:Bind ExpressionChecked, Mode=TwoWay}" GroupName="SelectionGroup"/>
          <RadioMenuFlyoutItem x:Uid="InputFlyoutItem/Const" Text="Const" IsChecked="{x:Bind ConstChecked, Mode=TwoWay}" Visibility="{x:Bind ConstVisibility}" GroupName="SelectionGroup"/>
          <RadioMenuFlyoutItem x:Uid="InputFlyoutItem/FolderPicker" Text="Folder" IsChecked="{x:Bind FolderChecked, Mode=TwoWay}" Visibility="{x:Bind FolderVisibility}" GroupName="SelectionGroup"/>
          <RadioMenuFlyoutItem x:Uid="InputFlyoutItem/FilePicker" Text="File" IsChecked="{x:Bind FileChecked, Mode=TwoWay}"  Visibility="{x:Bind FileVisibility}" GroupName="SelectionGroup"/>

      </MenuFlyout>
  </Button.Flyout>
</Button>

when i create multiple button, and RadioMenuFlyoutItem exclusive globally.

Steps to reproduce the bug

1 create axml code like above.

2. create multiple button

Expected behavior

exclusive every button

Screenshots

i create four button image score cls and filter text

click clsbutton and select '常量'

and then click 'filter text ' button , select '常量' ,

the cls button ,'常量' is unchecked.

NuGet package version

WinUI 3 - Windows App SDK 1.2 Preview 1: 1.2.0-preview1

Windows app type

• [ ] UWP
• [X] Win32

Device form factor

Desktop

Windows version

Windows 11 (22H2): Build 22621

Additional context

https://user-images.githubusercontent.com/16729017/198026884-87db3597-4857-40ea-b4d8-f5317c4d8109.mp4

No response

[shelllet]

any news?