Ticket 47627 - changelog iteration should ignore cleaned rids when getting the minCSN
Description: If a change is not found in the change log the server will look for a min csn
to start the replay. This minCSN should not come from a cleaned RUV element.
https://fedorahosted.org/389/ticket/47627
Reviewed by: rmeggins & lkrispenz(Thanks!!)
(cherry picked from commit 9c6e9bb12327a2d50e651221614d34984b605427)