diff --git a/OpenUtau.Core/DocManager.cs b/OpenUtau.Core/DocManager.cs
index ad0360973..533ce7a6d 100644
--- a/OpenUtau.Core/DocManager.cs
+++ b/OpenUtau.Core/DocManager.cs
@@ -115,7 +115,7 @@ public void SearchAllPlugins() {
         UCommandGroup? undoGroup = null;
         UCommandGroup? savedPoint = null;
         UCommandGroup? autosavedPoint = null;
-        public bool Recovered { get; set; } = false;
+        public bool Recovered { get; set; } = false; // Flag to not overwrite backup file
 
         public bool ChangesSaved {
             get {
diff --git a/OpenUtau.Core/Util/Preferences.cs b/OpenUtau.Core/Util/Preferences.cs
index 3514726cf..58c47b3b0 100644
--- a/OpenUtau.Core/Util/Preferences.cs
+++ b/OpenUtau.Core/Util/Preferences.cs
@@ -193,7 +193,6 @@ public class SerializablePreferences {
             public bool LockUnselectedNotesVibrato = true;
             public bool LockUnselectedNotesExpressions = true;
             public bool VoicebankPublishUseIgnore = true;
-          
             public string VoicebankPublishIgnores = "#Adobe Audition\n*.pkf\n\n#UTAU Engines\n*.ctspec\n*.d4c\n*.dio\n*.frc\n*.frt\n#*.frq\n*.harvest\n*.lessaudio\n*.llsm\n*.mrq\n*.pitchtier\n*.pkf\n*.platinum\n*.pmk\n*.star\n*.uspec\n*.vs4ufrq\n\n#UTAU related tools\n$read\n*.setParam-Scache\n*.lbp\n*.lbp.caches/*\n\n#OpenUtau\nerrors.txt\n*.sc.npz";
             public string RecoveryPath = string.Empty;
         }
diff --git a/OpenUtau/Views/MainWindow.axaml.cs b/OpenUtau/Views/MainWindow.axaml.cs
index 04226e5f4..d6ec849c6 100644
--- a/OpenUtau/Views/MainWindow.axaml.cs
+++ b/OpenUtau/Views/MainWindow.axaml.cs
@@ -52,7 +52,7 @@ public MainWindow() {
             InitializeComponent();
             Log.Information("Initialized main window component.");
             DataContext = viewModel = new MainWindowViewModel();
-          
+
             viewModel.InitProject(this);
             viewModel.AddTempoChangeCmd = ReactiveCommand.Create<int>(tick => AddTempoChange(tick));
             viewModel.DelTempoChangeCmd = ReactiveCommand.Create<int>(tick => DelTempoChange(tick));
@@ -1363,4 +1363,4 @@ public void OnNext(UCommand cmd, bool isUndo) {
             }
         }
     }
-}
\ No newline at end of file
+}