[Bug 1798121] [NEW] /usr/bin/update-manager:AssertionError:<lambda>:available:start_available:refresh_cache:update:saveDistUpgrade

[errors.ubuntu.com bug bridge]

Public bug reported:

The Ubuntu Error Tracker has been receiving reports about a problem regarding update-manager.  This problem was most recently seen with package version 1:18.04.11.5, the problem page at https://errors.ubuntu.com/problem/86928efdf0ca8d0c7fa38e3d0645b56dec471bef 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/.

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: artful bionic saucy trusty utopic vivid wily xenial yakkety

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https://bugs.launchpad.net/bugs/1798121

Title:
  /usr/bin/update-
  manager:AssertionError:<lambda>:available:start_available:refresh_cache:update:saveDistUpgrade

Status in update-manager package in Ubuntu:
  New

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 1:18.04.11.5, the problem page at https://errors.ubuntu.com/problem/86928efdf0ca8d0c7fa38e3d0645b56dec471bef 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/.

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