FontFamily broken in 1.3.2.6309-pre2

iOS Fonts no longer work in this version of XForms : 1.3.2.6309-pre2

Reproduction:

            MainPage = new ContentPage()
            {
                Padding = 20,
                Content = new Label()
                {
                    FontSize = 50 ,
                    FontFamily = "Courier" ,
                    Text = "This is not Courier"
                }
            };