单选按钮上的堆栈溢出异常？

Question

我维护了逆布尔值转换器，以通过单选按钮绑定bool属性。第一次正常工作。在使用窗口的数据上下文再次设置模型属性的相同实例时，我得到了堆栈溢出异常。

C＃：

public partial class Launcher : Window,INotifyPropertyChanged
{
    public Launcher()
    {
        InitializeComponent();
    }

    bool test;
    public bool Test
    {
        get
        {
            return test;
        }

        set
        {
            test = value;
            RaiseEvent("Test");
        }
    }
    void RaiseEvent(string name)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
    }
    public event PropertyChangedEventHandler PropertyChanged;

    private void Button_Click(object sender, RoutedEventArgs e)
    {//
          On first button click its work normally after close the mainwindow again click the same 
          button to launch the Mainwindow.
        Window obj = new MainWindow();
        obj.DataContext = this;
        obj.ShowDialog();
    }
}
public class InverseBoolConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return value is bool && (bool)value ? false : true;
    }
    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if (value is bool)
        {
            return !(bool)value;
        }
        return value;
    }
}

XAML：

 <Window.Resources>
    <local:InverseBoolConverter x:Key="inverse"/>
</Window.Resources>
<Grid>
    <Grid.RowDefinitions>
        <RowDefinition/>
        <RowDefinition/>      
    </Grid.RowDefinitions>
    <RadioButton Content="A" IsChecked="{Binding Test,Converter={StaticResource inverse}}" GroupName="A"/>
    <RadioButton Content="B" Grid.Row="1" IsChecked="{Binding Test}" GroupName="A"/>
</Grid>

查看共享代码，该按钮上的click事件用于激活主窗口。在这种情况下，第二次单击将多次触发转换回，最终结果是异常。