Missing Null Annotation With Null Default Value For Parameter

[JasonBock]

using Rocks;
using System;

public class NeedsNullable
{
	protected virtual void Initialize(object initializationData = null) { }
}

public static class Test
{
	public static void Go()
	{
		var expectations = Rock.Create<NeedsNullable>();
	}
}

Initialize() has a parameter, object initializationData = null. Doing a "Go To Definition" doesn't show the parameter with a "?", though it really should be. It's OK in an override to change it to have ?. So, the fix seems to be that if a parameter is optional, and the default value is null, it should be annotated with ?.