Closed Issue: Exception when ListPickerMode set to Full [8207]

When testing the picker with a basic example, I get an InvalidOperationException : "To get SystemTray visibility the RootVisual must be a PhoneApplicationFrame and its Content must be a PhoneApplicationPage" when I set ListPickerMode = Full

XAML :
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>

<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
<TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
<TextBlock x:Name="PageTitle" Text="page name" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>

<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">

<Grid.Resources>
<DataTemplate x:Name="PickerItemTemplate">
<StackPanel Orientation="Horizontal">
<Border Background="LightGreen" Width="34" Height="34">
<TextBlock Text="{Binding Country}"
FontSize="16"
HorizontalAlignment="Center"
VerticalAlignment="Center"/>
</Border>
<TextBlock Text="{Binding Name}"
Margin="12 0 0 0"/>
</StackPanel>
</DataTemplate>
<DataTemplate x:Name="PickerFullModeItemTemplate">
<StackPanel Orientation="Horizontal"
Margin="16 21 0 20">
<TextBlock Text="{Binding Name}"
Margin="16 0 0 0"
FontSize="43"
FontFamily="{StaticResource PhoneFontFamilyLight}"/>
<ContentControl Foreground="Green"
VerticalAlignment="Center">
<StackPanel Orientation="Horizontal">
<TextBlock Text="("/>
<TextBlock Text="{Binding Language}" />
<TextBlock Text=")"/>
</StackPanel>
</ContentControl>
</StackPanel>
</DataTemplate>
</Grid.Resources>

<StackPanel>
<toolkit:ListPicker x:Name="listPicker"
ItemTemplate="{StaticResource PickerItemTemplate}"
FullModeItemTemplate="{StaticResource PickerFullModeItemTemplate}"
Header="Cities"
CacheMode="BitmapCache"
FullModeHeader="CITIES"
ListPickerMode="Full" >
</toolkit:ListPicker>

</StackPanel>
</Grid>
</Grid>

CODE BEHIND :

public partial class MainPage : PhoneApplicationPage
{
public MainPage()
{
InitializeComponent();

List<Cities> source = new List<Cities>();
source.Add(new Cities() { Name = "Madrid", Country = "ES", Language = "Spanish" });
source.Add(new Cities() { Name = "Las Vegas", Country = "US", Language = "English" });
source.Add(new Cities() { Name = "London", Country = "UK", Language = "English" });
source.Add(new Cities() { Name = "Mexico", Country = "MX", Language = "Spanish" });

listPicker.ItemsSource = source;
}
}

public class Cities
{
public string Name { get; set; }
public string Country { get; set; }
public string Language { get; set; }
}
Comments:

Tried on the latest version of the toolkit and this no longer repros. ListPickerMode is no longer settable via user code.