$this->migrate( 'oldimage', [ 'oi_name', 'oi_timestamp' ], 'oi_description' );
$this->migrate( 'filearchive', 'fa_id', 'fa_deleted_reason' );
$this->migrate( 'filearchive', 'fa_id', 'fa_description' );
$this->migrate( 'oldimage', [ 'oi_name', 'oi_timestamp' ], 'oi_description' );
$this->migrate( 'filearchive', 'fa_id', 'fa_deleted_reason' );
$this->migrate( 'filearchive', 'fa_id', 'fa_description' );