Undo previous change and set status to "success" if feed read but wasn't modified

Application/Feeds/Feed.cs

@@ -202,6 +202,9 @@ public partial class Feed : RealmObject, INotifyDataErrorInfo
             case FeedReadResult.NotEnabled:
             case FeedReadResult.NotModified:
 
+                // Reset status to success
+                LastReadResult = FeedReadResult.Success;
+
                 // Ignore
                 break;
 

Application/MainWindow/FeedReading.cs

@@ -121,7 +121,7 @@ public partial class MainWindow
 
     private void UpdateErrorLink()
     {
-        var feedErrorCount = _database.Feeds.Count(f => f.LastReadResult != FeedReadResult.Success && f.LastReadResult != FeedReadResult.NotModified);
+        var feedErrorCount = _database.Feeds.Count(f => f.LastReadResult != FeedReadResult.Success);
 
         // Set the visibility of the error link
         FeedErrorsLink.Visibility = feedErrorCount == 0 ? Visibility.Collapsed : Visibility.Visible;