Drush "bam-restore" command ignores source parameter

Hi.
I noticed something weird around line 139 in backup_migrate.drush.inc:

  $settings = array('source_id' => $source_id);
  backup_migrate_perform_restore($destination_id, $file_id);

In a nutshell the settings array is correctly initialised but not passed to backup_migrate_perform_restore, which will cause the source parameter to be simply ignored.
Needless to say this bug may cause an unwanted database restore (since db is the default source_id).

Thanks for the awasome module.