sudo dpkg-reconfigure maas-cluster-controller breaks

This bug was fixed in the package maas - 1.3+bzr1452+dfsg-0ubuntu1

---------------
maas (1.3+bzr1452+dfsg-0ubuntu1) raring; urgency=low

  * New upstream release.
    - MAAS file storage mechanism is shifting from a single shared
      namespace to a per-user namespace. Operators of the majority
      of MAAS systems will not notice any change. However, operators
      of the most complex installations may find that a new
      "shared-environment" user is created, and that some resources
      are reassigned to it, such as API credentials and SSH public
      keys. This provides a transitional environment that mimics the
      behaviour of a shared namespace.

  [ Raphaël Badin ]
  * debian/control: maas-region-controller depends on bind9utils.
    (LP: #1103195)
  * debian/maas-dns.postinst: Call write_dns_config.
    (LP: #1085865).
  * debian/maas-cluster-controller.postinst: Fix the name of the config
    file (/etc/maas/pserv.yaml and not /etc/maas/pserv.conf)
    (LP: #1083542).
  * debian/extras/99-maas-sudoers: Add 'SETENV:' to sudo rule
    to allow preserving the environment when running
    /usr/sbin/maas-import-pxe-files via sudo.
  * debian/maas-dns.postinst: fix permissions and group ownership of
    file /etc/bind/maas/named.conf.rndc.maas. (LP: #1066935)
  * debian/control: Remove the dependency of maas-cluster-controller
    on rabbitmq-server. (LP: #1072744)
  * debian/extras/99-maas-sudoers: Add sudo rule for script
    /usr/sbin/maas-import-pxe-files.
  * debian/maas-cluster-controller.install: Removed commissioning-user-data
    script.

  [ Julian Edwards ]
  * debian/maas-region-controller.install: Remove installation of maas-gc; it
    is no longer required as upstream no longer stores files in the filesystem.
    (LP: #1069734)
  * debian/maas-cluster-controller.postinst: Ensure that /etc/maas/pserv.yaml
    is updated when reconfiguring. (LP: #1081212)

  [ Jeroen Vermeulen ]
  * debian/maas-cluster-controller.install: Install import scripts.
  * debian/maas-cluster-controller.postinst: Configure tgt (the iSCSI server)
    so the import script can install files to it.
  * debian/maas-cluster-controller.postrm: Clean up tgt config.
  * debian/maas-region-controller.install: Move import scripts out to the
    cluster controller, and drop the maas-import-isos compatibility script.
  * debian/maas-region-controller.postinst: Remove tgt config.
  * debian/maas-region-controller.postrm: Remove tgt config cleanup.
  * Bump code revision to include latest user_data.template fixes.

  [ Gavin Panella ]
  * debian/extras/99-maas: squashfs image download is no longer needed.
  * debian/maas-cluster-controller.install: maas-import-squashfs and its
    configuration file are no longer part of upstream.
  * debian/maas-cluster-controller.install: The maas-import-pxe-files cron
    task is no longer used.
  * debian/maas-cluster-controller.postinst: Remove leading comment
    markers from the 'generator' line in pserv.yaml.

  [ Andres Rodriguez ]
  * debian/control:
    - maas-cluster-controller Conflicts with tftpd-hpa (LP: #1076028)
    - maas-dns: Conflicts with dnsmasq
    - maas-cluster-controller Conflicts/Replaces maas-re...