Tabstop can't jump out `ToolBar`

[ahdung]

Description

as title say.

Reproduction Steps

1. create a wpf project (.net9.0-windows), .net framework no test
2. make window xaml like this:

   <Window x:Class="MessageTip.WPF.Window1"
           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
           xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
           xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
           xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
           mc:Ignorable="d"
           Title="Window1" Height="199" Width="401">
     <StackPanel>
       <ToolBarTray>
         <ToolBar>
           <Button>test1</Button>
           <Button>test2</Button>
         </ToolBar>
       </ToolBarTray>
       <Button HorizontalAlignment="Left" Margin="10">other focusable control</Button>
     </StackPanel>
   </Window>

3. build and try, you will meet this issue.

Expected behavior

tapstop work fine.

Actual behavior

tapstop not work fine.

Regression?

No response

Known Workarounds

No response

Impact

No response

Configuration

No response

Other information

No response