Merge branch 'master' into fixes/1149-comments-not-displaying

Author: jcansdale

src/GitHub.InlineReviews/Tags/InlineCommentTagger.cs

@@ -100,7 +100,7 @@ public IEnumerable<ITagSpan<InlineCommentTag>> GetTags(NormalizedSnapshotSpanCol
                 // Sucessful initialization will call NotifyTagsChanged, causing this method to be re-called.
                 Initialize();
             }
-            else if (file != null)
+            else if (file != null && session != null)
             {
                 foreach (var span in spans)
                 {

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

@@ -88,11 +88,10 @@ public RepositoryGroupDescription(RepositoryCloneControl owner)
 
             public override object GroupNameFromItem(object item, int level, System.Globalization.CultureInfo culture)
             {
-                Guard.ArgumentNotNull(item, nameof(item));
                 Guard.ArgumentNotNull(culture, nameof(culture));
 
                 var repo = item as IRemoteRepositoryModel;
-                var name = repo.Owner;
+                var name = repo?.Owner ?? string.Empty;
                 RepositoryGroup group;
 
                 if (!owner.groups.TryGetValue(name, out group))