BIND cannot load backup of slaved root zone

[Kevin Morgan]

Steps to reproduce:
1.Delete or move root.zone out of the bind directory if it exists.
1.Slave the root zone by adding the following to named.conf:
zone "." {
  type slave;
  file "root.zone";
  notify no;
  masters{192.0.32.140; 192.0.47.140; };
};
2.Restart BIND
3.restart BIND again

Unexpected results:
BIND cannot load backup of slaved root zone as shown by the following
warnings in the logfile:
general: error: dns_master_load: out of range
general: error: zone ./IN: loading from master file root.zone failed:
out of range
general: info: zone 0.0.127.in-addr.arpa/IN: loaded serial 1997022700
general: warning: zone ./IN: unable to load from 'root.zone'; renaming
file to 'db-00005784' for failure analysis and retransferring.


Expected results:
BIND should be able to reload the backup zone file.

--
Kevin Morgan
PGP Public Key ID 0xB6028066
Key fingerprint = 09FB 59EB D9FE 7C9C 12DF  9530 A877 FAB7 B602 8066