Hello, had the same problem years ago and the patch worked for me. As I understood, this special problem exist in mdb too (http://www.openldap.org/lists/openldap-technical/201301/msg00185.html) Thats one reason, because I did not switch till now.
I haven't seen this issue with mdb myself. Or maybe it is just too fast for it to really manifest in the same way.
--Quanah -- Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration