Properly clear loaded item if it's removed from the file list

Author: n00mkrad

ff-utils-winforms/Forms/MainForm.cs

@@ -298,6 +298,9 @@ public void RefreshFileListUi()
 
             fileCountLabel.Text = $"{count} file{(count != 1 ? "s" : "")} loaded. " +
                 $"{(count > 1 && RunTask.currentFileListMode == RunTask.FileListMode.Mux ? "Double click any of them or use the Load Tracks button to load their tracks." : "")}";
+
+            if (TrackList.current != null && !fileList.Items.Cast<ListViewItem>().Select(x => ((FileListEntry)x.Tag)).Any(x => x.File.Equals(TrackList.current.File)))
+                TrackList.ClearCurrentFile();
         }
 
         private async void fileListMode_SelectedIndexChanged(object sender, EventArgs e)

ff-utils-winforms/UI/TrackList.cs

@@ -135,6 +135,8 @@ public static void Refresh ()
                     i = 0; // Reset loop index, otherwise removing will result in skipped entries
                 }
             }
+
+            Program.mainForm.RefreshFileListUi();
         }
 
         public static string GetStreamDetails(Stream stream, MediaFile mediaFile = null)