[Bug 1913476] Re: /usr/bin/update-manager:TypeError:/usr/bin/update-manager at 118:start_update:start_available:refresh_cache:update:_make_groups:__contains__

[Łukasz Zemczak]

Hello errors.ubuntu.com, or anyone else affected,

Accepted update-manager into groovy-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/update-
manager/1:20.10.5 in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
groovy to verification-done-groovy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-groovy. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: update-manager (Ubuntu Groovy)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1913476

Title:
  /usr/bin/update-manager:TypeError:/usr/bin/update-
  manager at 118:start_update:start_available:refresh_cache:update:_make_groups:__contains__

Status in update-manager package in Ubuntu:
  Fix Released
Status in update-manager source package in Focal:
  In Progress
Status in update-manager source package in Groovy:
  Fix Committed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem regarding update-manager.  This problem was most recently seen with package version 1:20.04.10.3, the problem page at https://errors.ubuntu.com/problem/b4e18d21aa7526e3a98130b1556e4d38ffaff9e0 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
  If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

  [Impact]

   * With update-manager versions 1:20.04.10.3 or 1:20.10.2,
     update-manager would crash while processing the apt
     cache.

  [Test Case]

   * Look at the Error Tracker issues and make sure the 
     versions 1:20.04.11 and 1:20.10.3 do not cause this
     same error.

  [Where problems could occur]

   * If apt is ever processing a package without the name
     field, it couldcause a crash. This scenario would likely
     cause a crash in many other parts of the code other than
     what is being changed here

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