axfr bringing my dns config error to light

i have 204.9.96.4 & 204.9.96.5 answering authoritatively for:
    example.com
    sub.example.com

(literally).  204.9.96.4 allows all internet hosts to axfr
example.com/sub.example.com.

when i AXFR example.com, i get the A record(s) (et. al.) inside
sub.example.com, which i wouldnt expect.

what have i done wrong [in my data file] ?


# grep example.com /etc/tinydns/root/data
Zexample.com:a.ns.example.com:hostmaster.example.com
&example.com::a.ns.example.com:3600
&example.com::b.ns.example.com:3600
Zsub.example.com:a.ns.example.com:hostmaster.example.com
&sub.example.com::a.ns.example.com:3600
&sub.example.com::b.ns.example.com:3600
+a.ns.example.com:204.9.96.4:3600
+b.ns.example.com:204.9.96.5:3600
+examtest1.example.com:10.0.0.1:3600
+subtest1.sub.example.com:10.0.0.2:3600
#


-- 

Jeremy Kister
http://jeremy.kister.net./