[Bug 1638561] Re: unattended-upgrade fails to apply security updates if the update is also in another suite suffix component, such as yakkety-updates

[xtsbdu3reyrbrmroezob]

*** This bug is a duplicate of bug 1624641 ***
    https://bugs.launchpad.net/bugs/1624641

Still present, or new issue due to the changes?

"""
$ apt-cache policy unattended-upgrades
unattended-upgrades:
  Installed: 0.92ubuntu1
"""

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https://bugs.launchpad.net/bugs/1638561

Title:
  unattended-upgrade fails to apply security updates if the update is
  also in another suite suffix component, such as yakkety-updates

Status in unattended-upgrades package in Ubuntu:
  New

Bug description:
  As you can see below, the packages have security updates which are not
  being applied, presumably because the security updates are not only in
  yakkety-security, but also in yakkety-updates. This is a bug and
  leaves systems vulnerable that are expecting unattended-upgrades to
  apply the patches (it fails to do so).

  """
  # apt list --upgradable 2>/dev/null | grep yakkety-security
  liboxideqt-qmlplugin/yakkety-updates,yakkety-security 1.18.3-0ubuntu0.16.10.1 amd64 [upgradable from: 1.17.9-0ubuntu1]
  liboxideqtcore0/yakkety-updates,yakkety-security 1.18.3-0ubuntu0.16.10.1 amd64 [upgradable from: 1.17.9-0ubuntu1]
  liboxideqtquick0/yakkety-updates,yakkety-security 1.18.3-0ubuntu0.16.10.1 amd64 [upgradable from: 1.17.9-0ubuntu1]
  oxideqt-codecs/yakkety-updates,yakkety-security 1.18.3-0ubuntu0.16.10.1 amd64 [upgradable from: 1.17.9-0ubuntu1]
  # unattended-upgrade --dry-run -v                          
  Initial blacklisted packages: 
  Initial whitelisted packages: 
  Starting unattended upgrades script
  Allowed origins are: ['o=Ubuntu,a=yakkety-security']
  Option --dry-run given, *not* performing real actions
  Packages that will be upgraded: 
  <no output>
  """

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