TabControl controls are missing for UI Automation

I am attempting to automate a WPF web application using the UI Automation classes from a seperate C# application. The WPF "server" application, however, has much of its content (controls) on a TabControl, which has a style applied to it:

From Main.xaml:
<TabControl x:Name="tcRoot" Style="{StaticResourceEmptyTabControlStyle}" Grid.Row="1">

From TabControl.xaml:
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Style x:Key="EmptyTabControlStyle" TargetType="{x:Type TabControl}">
        <Setter Property="OverridesDefaultStyle" Value="True" />
        <Setter Property="SnapsToDevicePixels" Value="True" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type TabControl}">
                    <ContentPresenterContentSource="SelectedContent" />
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

I have found that as soon as you apply a style to the TabControl, all of its contained controls disappear. They are no longer found with UI Automation, and the UI Spy tool cannot find them either.


Is there something wrong with the way the styling is done that is causing this?
Is this simply a bug?
Is there a workaround?