TextBoxMask and KeyboardAccelerators not working togheter in WinUI3

[ZeusZoe]

Hi,
I've created a new simple project for test keyboardaccelerators functionality.
I used a Communitytoolkit extension, the TextBoxExtensions.Mask and I noted that not work.

This is the xaml:

`

<StackPanel Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center">
    <TextBox ex:TextBoxExtensions.Mask="99:99 99:99" Style="{StaticResource TextBoxNoClear}">
        <TextBox.KeyboardAccelerators>
            <KeyboardAccelerator Key="Enter" Modifiers="None" Invoked="KeyboardAccelerator_Invoked"/>
        </TextBox.KeyboardAccelerators>
    </TextBox>
    
    <ListBox x:Name="lb"></ListBox>
    <Button x:Name="myButton" Click="myButton_Click">Click Me</Button>
</StackPanel>

`

and this is the code:

` public sealed partial class MainWindow : Window
{
ObservableCollection oc=new ObservableCollection();
public MainWindow()
{
this.InitializeComponent();
lb.ItemsSource = oc;
}

    private void KeyboardAccelerator_Invoked(KeyboardAccelerator sender, KeyboardAcceleratorInvokedEventArgs args)
    {
        TextBox txt = args.Element as TextBox;
        string value = txt.Text;
        oc.Add(value);
        txt.Text = string.Empty;
    }
}

`
After push the enter key, the textbox should clear all its content, but not, it removes only last character available.

Thanks