doctrine/phpcr-odm — comment on commit 79bdb0c4a1312116b6544755d26e0560dfc858a8
File: lib/Doctrine/ODM/PHPCR/UnitOfWork.php line 821
By lsmith77:

yeah i also think isNodeType should be used here ..
as for being able to manually set the uuid, i think we will have to require this for any phpcr implementation that wants to support references via the ODM as otherwise we have to do additional roundtrips.