[db-wg] in-addr.arpa glue?

[Randy Bush via db-wg]

    domain:         0.28.147.in-addr.arpa
    descr:          RG79-147-28-0
    admin-c:        RB45695-RIPE
    tech-c:         RB45695-RIPE
    zone-c:         RB45695-RIPE
    nserver:        rip.psg.com
    nserver:        nlns.globnix.net
    mnt-by:         MAINT-RGNET
    source:         RIPE

    ***Error:   No response from nameserver for zone 28.147.in-addr.arpa when 
trying
                to fetch glue.

    ***Error:   Not enough data about 0.28.147.in-addr.arpa was found to be 
able to
                run tests.

not aware of glue in in-addr.arpa zones

does it want me to delete the 28.147.in-addr.arpa parent zone first?
that seems scary.

randy