[Bug 1894919] Re: gnome-software-plugin-snap consider an unwanted removal for 20.04 ubuntu-desktop

[Brian Murray]

Here are the upgrade logs from the test upgrade.

** Attachment added: "apport.ubuntu-release-upgrader-core.0lul5pa7.apport"
   https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1894919/+attachment/5408863/+files/apport.ubuntu-release-upgrader-core.0lul5pa7.apport

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https://bugs.launchpad.net/bugs/1894919

Title:
  gnome-software-plugin-snap consider an unwanted removal for 20.04
  ubuntu-desktop

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  I've been testing some release upgrades from 18.04 to 20.04 and
  noticed some packages were not getting removed with the following in
  /var/log/dist-upgrade/main.log.

   2020-09-07 15:57:38,148 DEBUG package 'libxml-sax-expat-perl' produces an unwanted removal 'gnome-software-plugin-snap', skipping
   2020-09-07 15:57:40,290 DEBUG 'libxml-sax-expat-perl' scheduled for remove but not safe to remove, skipping
   2020-09-07 15:57:40,349 DEBUG package 'libexporter-tiny-perl' produces an unwanted removal 'gnome-software-plugin-snap', skipping
   2020-09-07 15:57:42,485 DEBUG 'libexporter-tiny-perl' scheduled for remove but not safe to remove, skipping

  In Ubuntu 18.04 this package was a part of the following tasks:

  Task: ubuntu-desktop, xubuntu-desktop, ubuntustudio-desktop,
  ubuntukylin-desktop, ubuntu-budgie-desktop

  However, for 20.04 it is a part of the following tasks:

  Task: xubuntu-desktop, ubuntustudio-desktop, ubuntu-budgie-desktop

  Because the package is in main it is not a removal candidate itself
  but given that it is no longer part of the ubuntu-desktop and
  ubuntukylin-desktop packages it seems reasonable to add it to
  ForcedObsoletes but only for those 2 metapackages.

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