TabView throw ArgumentOutOfRange exception when TabItemSource is cleared

[Psykobal]

Describe the bug
If you clear an ObservableCollection attached to TabItemsSource, app will crash with ArgumentOutOfRangeException

Steps to reproduce the bug

Steps to reproduce the behavior:

1. Open XamlControlsGallery project

2. Modify private void TabViewItemsSourceSample_AddTabButtonClick(TabView sender, object args) in TabViewPage.xaml.cs as follow:
   myDatas.Clear();
// Add a new MyData item to the collection. TabView automatically generates a TabViewItem.
myDatas.Add(CreateNewMyData(myDatas.Count));

3. Launch the project and add a tab in the TabView page (third exemple)

Expected behavior
Old tabs are removed and the new tab appear

Version Info

NuGet package version:
[Microsoft.UI.Xaml.2.5.0-prerelease.200708003]

It was working on [Microsoft.UI.Xaml.2.4.2]

Windows 10 version	Saw the problem?
Insider Build (xxxxx)
May 2020 Update (19041)	Yes

Device form factor	Saw the problem?
Desktop	Yes
Xbox
Surface Hub
IoT

Additional context

[Felix-Dev]

I would like to take a look at this if nobody else is already looking into it.

As noticed by @Psykobal this is a regression which slipped into the WinUI 2.5 preview versions due to #2752.

[DHowett]

I believe Terminal is running into this reliably on startup now that it has moved to the latest prerelease.