WPF TreeView with isvirtualization=“true”在更改焦点和滚动时跳转

我做了一个简单的例子来重现我在 TreeView 树状视图 Focus ,然后在 树状视图 再一次,名单开始到处乱窜。

VirtualizingStackPanel.IsVirtualizing="True" . 这是已知的问题吗?有工作吗?

所以要再现:

2. 向下滚动到列表底部
3. 单击顶部的文本框。
4. 选择列表中的项目30

更新: 我已经在.Net 4.0beta中测试过了,这个问题不会发生。什么地方有热修复程序吗?

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <TextBox Grid.Row="0"></TextBox>

        <TreeView Grid.Row="1"
                  VirtualizingStackPanel.IsVirtualizing="True"
                  VirtualizingStackPanel.VirtualizationMode="Standard"
                  >          
            <TreeView.Items>
                <TreeViewItem Header="Header 1" IsExpanded="True">
                    <TreeViewItem.Items>
                        <TreeViewItem Header="Item 1" />
                        <TreeViewItem Header="Item 2" />
                        <TreeViewItem Header="Item 3" />
                        <TreeViewItem Header="Item 4" />
                        <TreeViewItem Header="Item 5" />
                        <TreeViewItem Header="Item 6" />
                        <TreeViewItem Header="Item 7" />
                        <TreeViewItem Header="Item 8" />
                        <TreeViewItem Header="Item 9" />
                        <TreeViewItem Header="Item 10" />
                        <TreeViewItem Header="Item 11" />
                        <TreeViewItem Header="Item 12" />
                        <TreeViewItem Header="Item 13" />
                        <TreeViewItem Header="Item 14" />
                        <TreeViewItem Header="Item 15" />
                        <TreeViewItem Header="Item 16" />
                        <TreeViewItem Header="Item 17" />
                        <TreeViewItem Header="Item 18" />
                        <TreeViewItem Header="Item 19" />
                        <TreeViewItem Header="Item 20" />
                        <TreeViewItem Header="Item 21" />
                        <TreeViewItem Header="Item 22" />
                        <TreeViewItem Header="Item 23" />
                        <TreeViewItem Header="Item 24" />
                        <TreeViewItem Header="Item 25" />
                        <TreeViewItem Header="Item 26" />
                        <TreeViewItem Header="Item 27" />
                        <TreeViewItem Header="Item 28" />
                        <TreeViewItem Header="Item 29" />
                        <TreeViewItem Header="Item 30" />
                    </TreeViewItem.Items>                    
                </TreeViewItem>
            </TreeView.Items>
        </TreeView>
    </Grid>
</Window>