workaround for checkbox not propagating changes to KeepPrivate property

We made an assumption here that the CheckBox IsChecked property
would update the property on the viewmodel, but this isn't working
when the user control is hosted in the Team Explorer panel.

Author: shiftkey

src/GitHub.VisualStudio/UI/Views/Controls/RepositoryPublishControl.xaml.cs

@@ -30,7 +30,13 @@ public RepositoryPublishControl()
                 d(this.Bind(ViewModel, vm => vm.RepositoryName, v => v.nameText.Text));
 
                 d(this.Bind(ViewModel, vm => vm.Description, v => v.description.Text));
-                d(this.Bind(ViewModel, vm => vm.KeepPrivate, v => v.makePrivate.IsChecked));
+
+                d(Observable.FromEventPattern<RoutedEventArgs>(makePrivate, "Checked")
+                    .Subscribe(_ => ViewModel.KeepPrivate = true));
+
+                d(Observable.FromEventPattern<RoutedEventArgs>(makePrivate, "Unchecked")
+                    .Subscribe(_ => ViewModel.KeepPrivate = false));
+
                 d(this.OneWayBind(ViewModel, vm => vm.CanKeepPrivate, v => v.makePrivate.IsEnabled));
 
                 //d(this.OneWayBind(ViewModel, vm => vm.ShowUpgradeToMicroPlanWarning, v => v.upgradeToMicroPlanWarning.Visibility));