Bug in ListView.HeaderTemplate?

var listView = new ListView {};
listView.SetBinding<IssueViewModel>(ListView.HeaderProperty, x => x.CurrentItem);
listView.HeaderTemplate = new DataTemplate(() =>
{
        var cell = new ViewCell {View = new StackLayout()};
                return cell;
});

it will crash on latest Xamarin.Forms (1.4.2.6355) with this exception:
System.ArgumentException: Value was an invalid value for HeaderTemplate
Parameter name: value

If anyone had same problem I found this workaround (works fine with binding, etc):

listView.HeaderTemplate = new DataTemplate(() =>
{
        var cell = new StackLayout();
                return cell;
});