Ticket 48266 - do not free repl keep alive entry on error
    
    Description:  There is no need to free the "repl keep alive" entry
                  if any stage of the "add" fails.  Otherwise we could
                  potentially run into a double free.
    
    https://fedorahosted.org/389/ticket/48266
    
    Reviewed by: nhosoi(Thanks!)
    
    (cherry picked from commit e5d9b0c741af1c3ea5e8212148a3ba95ee18925b)
    (cherry picked from commit 17834f91f7ea6a88be34b0094b53484498142d40)