Issue 50933 - Fix OID change between 10rfc2307 and 10rfc2307compat
    
    Bug Description:  10rfc2307compat changed the OID for nisMap objectclass to
                      match the standard OID, but this breaks replication with
                      older versions of DS.
    
    Fix Description:  Continue to use the old(invalid?) oid for nisMap so that
                      replication does not break in a mixed version environment.
    
    Fixes: https://pagure.io/389-ds-base/issue/50933
    
    Reviewed by: firstyear & tbordaz(Thanks!!)