Bug#919909: libconfig-model-backend-yaml-perl: fails to upgrade from 'stretch' - trying to overwrite /usr/share/man/man3/Config::Model::Backend::Yaml.3pm.gz

[Andreas Beckmann]

Package: libconfig-model-backend-yaml-perl
Version: 2.133-1
Severity: serious
User: debian-qa at lists.debian.org
Usertags: piuparts
Control: affects -1 + libconfig-model-perl

Hi,

during a test with piuparts I noticed your package fails to upgrade from
'stretch'.
It installed fine in 'stretch', then the upgrade to 'buster' 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...):

  Selecting previously unselected package libconfig-model-backend-yaml-perl.
  Preparing to unpack .../047-libconfig-model-backend-yaml-perl_2.133-1_all.deb ...
  Unpacking libconfig-model-backend-yaml-perl (2.133-1) ...
  dpkg: error processing archive /tmp/apt-dpkg-install-T8rg5D/047-libconfig-model-backend-yaml-perl_2.133-1_all.deb (--unpack):
   trying to overwrite '/usr/share/man/man3/Config::Model::Backend::Yaml.3pm.gz', which is also in package libconfig-model-perl 2.097-2


cheers,

Andreas
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