`AppWindow.Closing` event is not fired when calling `Application.Current.Exit()`

[d2phap]

Describe the bug

As the title: AppWindow.Closing event is not raised when calling Application.Current.Exit()

Why is this important?

Since the event is not fired, it's impossible to track the window or cancel the window closing action with AppWindowClosingEventArgs

Steps to reproduce the bug

1. Having this code

private void PART_WindowContent_Loaded(object sender, RoutedEventArgs e)
{
    AppWindow.Closing += AppWindow_Closing;
    AppWindow.Destroying += AppWindow_Destroying;
}

private void AppWindow_Closing(AppWindow sender, AppWindowClosingEventArgs e)
{
    // this event is not fired
}

private void AppWindow_Destroying(AppWindow sender, object e)
{
    // this event is fired
}

2. Call Application.Current.Exit() to quit the app while the window is open

Actual behavior

AppWindow.Closing is not fired

Expected behavior

AppWindow.Closing must be fired

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.8.2: 1.8.251003001

Windows version

Windows 11 (24H2): Build 26100

Additional context

No response