Merge pull request #860 from github/fixes/783-disable-publish-view-during-publish

Disable publish view during publish.

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

@@ -15,7 +15,8 @@
                                        d:DesignWidth="414"
                                        Background="{DynamicResource GitHubVsToolWindowBackground}"
                                        d:DataContext="{d:DesignInstance Type=sampleData:RepositoryPublishViewModelDesigner, IsDesignTimeCreatable=True}"
-                                       mc:Ignorable="d">
+                                       mc:Ignorable="d"
+                                       IsEnabled="{Binding IsPublishing, Converter={ui:InverseBooleanConverter}}">
 
   <UserControl.Resources>
     <ResourceDictionary>