Comment 17 for bug 1778817

This bug was fixed in the package ubuntu-release-upgrader - 1:18.10.4

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ubuntu-release-upgrader (1:18.10.4) cosmic; urgency=medium

  * DistUpgradeQuirks.py, DistUpgradeController.py: move inhibiting of
    gnome-session idle so that it is called immediately after the upgrade
    starts (LP: #1778817), present a dialog notifying that the lock screen has
    been disabled (LP: #1174093), and do not reenable the lock screen as it
    may fail to work after a release upgrade. (LP: #1780342)
  * DistUpgradeQuirks.py: Add in a quirk for upgrading to Cosmic that will
    check if the system has connectivity to the snap store and replace some
    desktop packages with snaps to ensure the system is similar to a fresh
    install.

 -- Brian Murray <email address hidden> Fri, 06 Jul 2018 11:21:11 -0700