Comment 4 for bug 1787649

This bug was fixed in the package ubuntu-release-upgrader - 1:18.10.10

---------------
ubuntu-release-upgrader (1:18.10.10) cosmic; urgency=medium

  [ Harald Sitter ]
  * DistUpgradeViewKDE.py:
    - exitMainLoop is now exitMainLoopMidFlight to make it clearer that
      it is run while the app is still running. it's a hack and not
      the actual exit point
    - inhibit kscreenlocker while the UI is up to prevent the lock screen
      from breaking during upgrades and then complain to the user

  [ Brian Murray ]
  * DistUpgradeQuirks.py: add a quirk which checks for an apt architecture
    of i386 and prevents the upgrade as the architecture may be dropped.
  * DistUpgradeController.py: If the attempt to only upgrade libc6 ends up
    creating an issue with apt's problem resolver try the full upgrade. This
    is what would have happened before the fix for bug 1766890. (LP: #1787649)

 -- Brian Murray <email address hidden> Fri, 31 Aug 2018 15:36:32 -0700