Bug 800173 - RHDS fractional replication with excluded password policy attributes leads to wrong error messages.
    
    https://bugzilla.redhat.com/show_bug.cgi?id=800173
    Resolves: Bug 800173
    Bug Description: RHDS fractional replication with excluded password policy attributes leads to wrong error messages.
    Reviewed by: nhosoi (Thanks!)
    Branch: Directory_Server_8_2_Branch
    Fix Description: Fractional replication can remove _all_ mods in an add or
    modify operation.  The mozldap SDK will return an err=89 LDAP_PARAM_ERROR
    in this case.  The solution is to just skip add and modify operations
    that contain no data.
    Platforms tested: RHEL6 x86_64
    Flag Day: no
    Doc impact: no