Ticket #47362 - ipa upgrade selinuxusermap data not replicating

https://fedorahosted.org/389/ticket/47362
Reviewed by: nhosoi (Thanks!)
Branch: 389-ds-base-1.3.0
Fix Description: When nsslapd-port is set to 0, this causes the
replica purl to be "ldap://hostname:0".  At startup, the MMR code looks to
see if this replica purl is in the RUV, by doing a string comparison of this
purl with the ruv replica purl.  If it is not there, the MMR code wipes out
this ruv element.  Later the code in replica_check_for_data_reload() uses
this RUV to see if it needs to reinit the changelog.  Since the RUV doesn't
match the changelog RUV any more, the changelog is erased, which erases
any changes that were made in the meantime.  The missing RUV element causes
the supplier to attempt to send over changes which may already exist on the
consumer.  If one of these is an ADD, the urp code will correctly flag this
as an attempt to add an entry that already exists, and will turn this into
a replConflict entry.  A subsequent attempt to replicate the same ADD will
cause an error in the urp code which will cause it to return err=53.
Replication will then become stuck on this update - it will keep trying to
send it over and over again, and will not be able to proceed.
The only workaround is a replica reinit of the replica, to get the database
RUV and changelog in a consistent state.
I've also added some additional RUV debugging when using the REPL log level.
Platforms tested: RHEL6 x86_64
Flag Day: no
Doc impact: no
(cherry picked from commit 614ce4e4b1774526bb8c4ad6c43a1582adcc30ec)
(cherry picked from commit 6236d7a7df86141311d731ce737d1c0986d564ee)