I discover a problem when using the sorting function in Gollem 3.0.1.

I have only one backends running in smb.  When I go inside a 
sub-folder of the share, trying using one of the sorting (e.g. by 
updated date) on the top.  It cannot return the result in the current 
folder but the root folder of the share.

The backend.local.php is as follows:

// SMB Example
$backends['smb'] = array(
   // Disabled by default
   'disabled' => false,
   'name' => 'W:',
   'driver' => 'smb',
   'hordeauth' => true,
   'params' => array(
       'hostspec' => 'file.sambadom.org',
       'port' => 445,
       'share' => 'Public',
       // Path to the smbclient executable.
       'smbclient' => '/usr/local/samba/bin/smbclient4',
       // IP address of server (only needed if hostname is different from
       // NetBIOS name).
       // 'ipaddress' => '127.0.0.1',
       // The default permissions to set for newly created folders and
       // files.
       // 'permissions' => '750'
   ),
   'loginparams' => array(
       // Allow the user to change to Samba server.
       // 'hostspec' => 'Hostname',
       // Allow the user to change the Samba port.
       // 'port' => 'Port',
       // Allow the user to change the Samba share.
       // 'share' => 'Share',
   ),
   // 'root' => '',
   // 'home' => '',
   // 'createhome' => false,
   // 'filter' => '^regex$',
   // 'quota' => false,
   'attributes' => array(
       'type',
       'name',
       'edit',
       'download',
       'modified',
       'size'
   )
);