Can't it be done online (using ldapmodify), and wouldn't it be re-replicated back?
It won't remove the contextCSN from the root entry if you do it online. I missed noting that step was necessary as well.
--Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>