Submenu flickers on and off when hovering over disabled items

[apman]

Describe the bug

When a submenu contains a disabled item, hovering the mouse over that item makes the whole submenu flicker on and off, and eventually disappear.

Monosnap.screencast.2025-01-17.17-22-04.mp4

To Reproduce

Take any nested menu (a MenuFlyout here, but the same happens with Menu) with a disabled item in a submenu:

<Panel Margin="20">
    <TextBlock HorizontalAlignment="Left" VerticalAlignment="Top" Height="20"
               Text="Right-click me">
      <TextBlock.ContextFlyout>
        <MenuFlyout Placement="RightEdgeAlignedTop">
          <MenuItem Header="Item 1" />
          <MenuItem Header="Item 2">
            <MenuItem Header="SubItem 1" />
            <MenuItem Header="SubItem 2"  IsEnabled="False" />
            <MenuItem Header="SubItem 3"/>
          </MenuItem>
          <MenuItem Header="Item 3" />
        </MenuFlyout>
      </TextBlock.ContextFlyout>
    </TextBlock>
  </Panel>

Hover the mouse pointer over the disabled item to see it flickering

Expected behavior

The submenu should remain visible as long as the mouse pointer is above any of its items.

Avalonia version

11.2.3

OS

macOS

Additional context

No response