[xml/sgml-pkgs] Bug#745038: sgml-base: dependency xml-core missing (missing update-xmlcatalog)

[lkcl]

Package: sgml-base
Version: 1.26+nmu3
Severity: serious
Justification: 2

the command update-xmlcatalog is used by sgml-base however the
dependency xml-core is missing.  this is from an upgrade of
a debian/wheezy system to debian-testing (sgml-data-2.0.9-1)
which is now in an unusable state and requires manual intervention
to recover, manually installing via dpkg the correct xml-core
package.

please ignore the majority of system information below because
i have been forced to use an alternative system to report this
bug.

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.13-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages sgml-base depends on:
ii  dpkg  1.17.6
ii  perl  5.18.1-3

sgml-base recommends no packages.

Versions of packages sgml-base suggests:
pn  sgml-base-doc  <none>

-- no debconf information