Folder::copyToInternal

protected function copyToInternal(Folder $targetFolder, $updatedBy, $generateUniqueName = false)
{
	$newFolder = $targetFolder->addSubFolder(array(
		'NAME' => $this->getName(),
		'CREATED_BY' => $updatedBy,
	), array(), $generateUniqueName);

	if(!$newFolder)
	{
		$this->errorCollection->add($targetFolder->getErrors());
		return null;
	}
	return $newFolder;
}