To support corefx 10752, surfaced by corefx issue 38085.

In .NET Core 3 Preview 7, the CoreFX team introduced support for ranges via Collection<T> and ObservableCollection<T>. WPF is not able to handle how the new implementation of AddRange on Collection<T> as the add is done as a bulk insert at the end which changes the behavior of 'ListCollectionView` which does not support bulk operations and throws an https://github.com/dotnet/wpf/blob/master/src/Microsoft.DotNet.Wpf/src/PresentationFramework/System/Windows/Data/ListCollectionView.cs#L2521.

The net effect here is that a common helper method that is used in many WPF apps (AddRange to an ObservableCollection<T> no longer binds and the replacement method's behavior has a negative and observable side effect.

Adding issue for .NET 5 consideration