Hmm, not sure.

````
When you detach a document from the ``UnitOfWork`` you effectively erase Doctrines in-memory reference to this object - and
it will no longer be managed by Doctrine.

You can detach a document from the ``UnitOfWork`` by invoking .. 
````

or

````
.. You can make Doctrine forget about a document by detaching it from the ``UnitOfWork``. You can achieve this by invoking the ``DocumentManager::detach($document)`` method ...
````