Hack to fix Begin/EndInit bug caused by DelayedValuesHelper

src/Markup/Avalonia.Markup.Xaml/AvaloniaXamlLoaderPortableXaml.cs

@@ -189,7 +189,7 @@ namespace Avalonia.Markup.Xaml
                                     context);
 
             XamlServices.Transform(reader, writer);
-
+            writer.ApplyAllDelayedProperties();
             return writer.Result;
         }
 

src/Markup/Avalonia.Markup.Xaml/PortableXaml/AvaloniaXamlObjectWriter.cs

@@ -54,6 +54,12 @@ namespace Avalonia.Markup.Xaml.PortableXaml
             base.Dispose(disposing);
         }
 
+        public void ApplyAllDelayedProperties()
+        {
+            //HACK: We need this because Begin/EndInit ordering is broken
+            _delayedValuesHelper.ApplyAll();
+        }
+
         protected internal override void OnAfterBeginInit(object value)
         {
             //not called for avalonia objects
@@ -137,7 +143,7 @@ namespace Avalonia.Markup.Xaml.PortableXaml
 
                 if (_cnt == 0)
                 {
-                    EndInit();
+                    ApplyAll();
                 }
             }
 
@@ -174,7 +180,7 @@ namespace Avalonia.Markup.Xaml.PortableXaml
                 }
             }
 
-            private void EndInit()
+            public void ApplyAll()
             {
                 //TODO: revisit this
                 //apply delayed values and clear