Ticket 47813 - managed entry plugin fails to update member
 pointer on modrdn operation

Bug Description:  A modrdn on an existing managed entry failed to update
                  the entry pointer becuase part of the update is to add
                  the managed entry objectclass - which already exists
                  in the managed entry.  This caused the new pointer value
                  to not be added to the managed entry.

Fix Description:  During a modrdn operation perform the objectclass addition
                  in a separate operation, as we don't know if the entry
                  already has the objectclass or not.

https://fedorahosted.org/389/ticket/47813

TET: passed
Jenkins: passed

Reviewed by: rmeggins(Thanks!)

(cherry picked from commit 0fe78df27bea0ed29f5f74266bc530832e0d8906)
Ticket 47813 - remove "goto bail" from previous commit

https://fedorahosted.org/389/ticket/47813
(cherry picked from commit 4cdd7fd6ad41ff5d92dfd452b6a7bef25462b643)