Small bug with Access Control

Hello,

I found what seems to be a small bug with Access Control.

Im using the following configuration :

$config['AccessControl'][] = Array(
      'role' => '*',
      'resourceType' => '*',
      'folder' => '/',

      'folderView' => true,
      'folderCreate' => false,
      'folderRename' => false,
      'folderDelete' => false,

      'fileView' => true,
      'fileUpload' => false,
      'fileRename' => false,
      'fileDelete' => false);
      
$config['AccessControl'][] = Array(
      'role' => '*',
      'resourceType' => 'Files',
      'folder' => 'test/',

      'folderView' => false,
      'folderCreate' => false,
      'folderRename' => false,
      'folderDelete' => false,

      'fileView' => true,
      'fileUpload' => false,
      'fileRename' => false,
      'fileDelete' => false);

If my files/ folder has ONLY a subfolder named test, then a small + symbol will be displayed. Upon opening the folder, the symbols disappears.

I suppose it may be reproduced whatever the number of subfolders, if the user cannot access any.
I'm using version 2.0.2