ListBox (or SelectingItemsControl) selection change raises the Remove instead of Reset

[MechWarrior99]

Describe the bug

When a SelectingItemsControl (or specifically ListBox) is set to SelectionMode = Single, with an ObserivableCollection bound to the SelectedItems property. When selection changes, the action type for the event on the ObservableCollection is Remove instead of Reset. This is an issue if items that are not in the ItemsSource can be selected. (Like sharing selection between multiple ListBoxes)
As a note, the TreeView will raise the event with the Reset action instead, under the same conditions.

To Reproduce

1. Create a default MVVM application.
2. Replace the body of the MainView.axaml with the following

 <ListBox SelectedItems="{Binding SelectedItems}"
                 SelectionMode="Single">
       <ListBoxItem Content="Item 1"/>
        <ListBoxItem Content="Item 2"/>
        <ListBoxItem Content="Item 3"/>
        <ListBoxItem Content="Item 4"/>
</ListBox>

3. Replace the body of MainViewModel.cs with the following

 public ObservableCollection<object> SelectedItems { get; set; }

  public MainViewModel()
  {
      SelectedItems = new ObservableCollection<object>();
      SelectedItems.CollectionChanged += (sender, args) =>
      {
          // Set break point here ^^^^^
      };
  }

4. Set a break point where specified.
5. Run in debug mode, change selection.
6. Change selection a second time.

Expected behavior

When selection changes from an existing selection, args.Action should be NotifyCollectionChangedAction.Reset.

Avalonia version

11.2.2

OS

Windows

Additional context

No response