/**
* Revert the block to the rootVersion and if version equals false it will give you the newest by default.
*
* @param BlockInterface $block
* @param null|integer $rootVersion
*/
public function revert(BlockInterface $block, $version)
{
$block->accept(new RevertVisitor($this, $version));
if ($block instanceof BlockContainerInterface) {
self::treeAddMissingChildren($block);
self::treeRemoveInvalidChildren($block);
$block->accept(new SortVisitor());
}
}