Bug#943847: python3-sardana: missing Breaks+Replaces: python-sardana

[Andreas Beckmann]

Package: python3-sardana
Version: 3.0.0a+3.f4f89e+dfsg-1
Severity: serious
User: debian-qa at lists.debian.org
Usertags: piuparts

Hi,

during a test with piuparts I noticed your package fails to upgrade from
'buster'.
It installed fine in 'buster', then the upgrade to 'bullseye' 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#overwriting-files-and-replacing-packages-replaces

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

  Preparing to unpack .../python3-sardana_3.0.0a+3.f4f89e+dfsg-1_all.deb ...
  Unpacking python3-sardana (3.0.0a+3.f4f89e+dfsg-1) ...
  dpkg: error processing archive /var/cache/apt/archives/python3-sardana_3.0.0a+3.f4f89e+dfsg-1_all.deb (--unpack):
   trying to overwrite '/usr/bin/MacroServer', which is also in package python-sardana 2.6.2+dfsg-1
  dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
  Errors were encountered while processing:
   /var/cache/apt/archives/python3-sardana_3.0.0a+3.f4f89e+dfsg-1_all.deb


cheers,

Andreas
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