Bug#815682: texlive-binaries: fails to upgrade from 'sid' - trying to overwrite /usr/bin/gregorio

[Andreas Beckmann <anbe@debian.org>]

Package: texlive-binaries
Version: 2015.20160213.39691-1
Severity: serious
User: debian-qa@lists.debian.org
Usertags: piuparts

Hi,

during a test with piuparts I noticed your package fails to upgrade from
'sid' to 'experimental'.
It installed fine in 'sid', then the upgrade to 'experimental' fails
because it tries to overwrite other packages files without declaring a
Breaks+Replaces relation.

See policy 7.6 at
https://www.debian.org/doc/debian-policy/ch-relationships.html#s-replaces

>From the attached log (scroll to the bottom...):

  Selecting previously unselected package texlive-binaries.
  Preparing to unpack .../texlive-binaries_2015.20160213.39691-1_amd64.deb ...
  Unpacking texlive-binaries (2015.20160213.39691-1) ...
  dpkg: error processing archive /var/cache/apt/archives/texlive-binaries_2015.20160213.39691-1_amd64.deb (--unpack):
   trying to overwrite '/usr/bin/gregorio', which is also in package gregorio 2.3-1

I also noticed that there is now a 
  Replaces: pmx (<< 2015)
without corresponding Breaks.
Replaces should always come with matching Breaks (or Conflicts), because
once a file from $oldpkg was taken over by $newpkg and $newpkg gets removed
later on, the old version of $oldpkg will be no longer complete.

cheers,

Andreas