[Bug 1873574] Re: Cannot enable repository source

[Hadrien]

When I start software-properties-gtk from a terminal and click on one of
the mentioned checkbox, I get this error output:

ERROR:root:Authentication canceled, changes have not been saved

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https://bugs.launchpad.net/bugs/1873574

Title:
  Cannot enable repository source

Status in software-properties package in Ubuntu:
  New

Bug description:
  Context:
  I upgraded from 18.04 to 20.04 and wanted to enable again some repository sources that were disabled for the upgrade.

  Steps to reproduce:
  * Open software-properties-gtk
  * Go to the "Other software" tab
  * Click on any checkbox in front of each source address

  Expected result:
  * A popup appears prompting me to enter my password
  * The list does not scroll and the checkbox is checked

  Actual result:
  * The list scrolls up to the top
  * The checkbox is not checked

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: software-properties-gtk 0.98.7
  ProcVersionSignature: Ubuntu 5.4.0-24.28-generic 5.4.30
  Uname: Linux 5.4.0-24-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Apr 18 18:03:43 2020
  InstallationDate: Installed on 2018-04-07 (742 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180403)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: software-properties
  UpgradeStatus: Upgraded to focal on 2020-04-04 (13 days ago)

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