This routine should not be called directly as mentioned at its top, so
replace it by GetNewOidWithIndex().  Issue introduced by 
6566133 when
pg_auth_members.oid got added, so no backpatch is needed.
Author: Maciek Sakrejda
Discussion: https://postgr.es/m/CAOtHd0Ckbih7Ur7XeVyLAJ26VZOfTNcq9qV403bNF4uTGtAN+Q@mail.gmail.com
            }
 
            /* get an OID for the new row and insert it */
-           objectId = GetNewObjectId();
+           objectId = GetNewOidWithIndex(pg_authmem_rel, AuthMemOidIndexId,
+                                         Anum_pg_auth_members_oid);
            new_record[Anum_pg_auth_members_oid - 1] = objectId;
            tuple = heap_form_tuple(pg_authmem_dsc,
                                    new_record, new_record_nulls);