Fix: Fixed issue that caused NullReferenceException to be raised unnecessarily (#11888)

Author: hishitetsu

src/Files.App/Shell/Win32Shell.cs

@@ -39,17 +39,19 @@ static Win32Shell()
 				try
 				{
 					using var shellFolder = ShellFolderExtensions.GetShellItemFromPathOrPidl(path) as ShellFolder;
-					folder = ShellFolderExtensions.GetShellFileItem(shellFolder);
 
-					if ((controlPanel.PIDL.IsParentOf(shellFolder.PIDL, false) ||
+					if (shellFolder is null ||
+						(controlPanel.PIDL.IsParentOf(shellFolder.PIDL, false) ||
 						controlPanelCategoryView.PIDL.IsParentOf(shellFolder.PIDL, false)) &&
-						(shellFolder is null || !shellFolder.Any()))
+						!shellFolder.Any())
 					{
 						// Return null to force open unsupported items in explorer
 						// only if inside control panel and folder appears empty
 						return (null, flc);
 					}
 
+					folder = ShellFolderExtensions.GetShellFileItem(shellFolder);
+
 					if (action == "Enumerate")
 					{
 						foreach (var folderItem in shellFolder.Skip(from).Take(count))