Dynamically Generated MenuItem does not update `IsChecked` property of bound backing property.

[giard-alexandre]

Describe the bug

When Binding to a property using the <MenuItem.Styles> or <MenuItem.ItemContainerTheme> method, the IsChecked property does not stay in sync with its bound property.

• The underlying property is not updated when you check/uncheck the menu element (I could get around that with a command)
• The IsChecked property on the MenuItem does not get updated when the backing Property is changed, despite that property being a Reactive Property from ReactiveUI.Fody.Helpers (which should implement INotifyPropertyChanged). This means that the Checkbox stays visible despite the fact that it should not.

To Reproduce

Use this code:

<MenuItem Header="_Windows" ItemsSource="{Binding WorkspaceWindows, Mode=OneWay}">
    <MenuItem.ItemContainerTheme>
        <ControlTheme TargetType="MenuItem" BasedOn="{StaticResource {x:Type MenuItem}}"
                      x:DataType="layout:WorkspaceWindowState">

            <Setter Property="Command"
                    Value="{Binding  $parent[MenuItem].((appnamespaces:WindowViewModel)DataContext).ToggleWindowCommand}" />
            <Setter Property="CommandParameter" Value="{Binding .}" />
            <Setter Property="Header" Value="{Binding Name}" />
            <Setter Property="IsChecked" Value="{Binding IsVisible}" />
            <Setter Property="ToggleType" Value="CheckBox" />
        </ControlTheme>
    </MenuItem.ItemContainerTheme>
</MenuItem>

The type of WorkSpaceWindows is an ObservableList of:

public class WorkspaceWindowState : ReactiveObject {
  [Reactive]
  public bool IsVisible { get; set; }

  public string Name { get; set; } = string.Empty;
}

Expected behavior

Closing the window sets the value of IsVisible to false, so the IsChecked Property of the MenuItem should be set to false too.

Avalonia version

11.1.3

OS

Windows

Additional context

No response