HoconValue.TryGetObject can throw System.ArgumentNullException

[Aaronontheweb]

Looks like the issue is that Hocon.Config.Root.TryGetObject threw an exception:

HOCON/src/Hocon/Impl/HoconValue.cs

Lines 69 to 91 in 9d176be

	public virtual bool TryGetObject(out HoconObject result)
	{
	result = null;
	if (Type != HoconType.Object)
	return false;
	var objects = this
	.Where(value => value.Type == HoconType.Object)
	.Select(value => value.GetObject()).ToList();
	switch (objects.Count)
	{
	case 0:
	break;
	case 1:
	result = objects[0];
	break;
	default:
	result = new HoconMergedObject(this, objects);
	break;
	}
	return true;
	}

System.ArgumentNullException: 'Value cannot be null. Parameter name: source'

Originally posted by @Aaronontheweb in akkadotnet/akka.net#4234 (comment)