Comment 4 for bug 1775292

This bug was fixed in the package unattended-upgrades - 1.1ubuntu1.18.04.1

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unattended-upgrades (1.1ubuntu1.18.04.1) bionic; urgency=medium

  [ Michael Vogt ]
  * unattended-upgrades: fix Unlocked context manager. (LP: #1602536)
    The Unlocked context manager did correctly unlock but did not
    reacquire the lock which means that in minimal-upgrade step
    mode it is possible to run apt code without a lock. If something
    else (like landscape, apt, synaptic, packagekit) locks the cache
    in the meantime this will work and u-u will get dpkg errors
    because dpkg will not be able to perform its operations. It is
    less of an issue in non-minimal mode, but even then the auto-remove
    step may fail in this way.

  [ Balint Reczey ]
  * Fix adjusting candidates (LP: #1775292)
  * Relock apt lock before reopening the cache (LP: #1602536)
  * Fix crashing while adjusting candidates and save candidates to adjust only
    in first sweep run, not emptying the set later
    (Closes: #901258) (LP: #1775307)

 -- Balint Reczey <email address hidden> Wed, 06 Jun 2018 16:30:55 -0700