[Bug 1587667] Update Released

[Brian Murray]

The verification of the Stable Release Update for dpkg has completed
successfully and the package has now been released to -updates.
Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1587667

Title:
  Import from Debian fails for source packages with included tarball
  .asc

Status in Launchpad itself:
  Fix Committed
Status in dpkg package in Ubuntu:
  Fix Released
Status in dpkg source package in Precise:
  Fix Released
Status in dpkg source package in Trusty:
  Fix Released
Status in dpkg source package in Xenial:
  Fix Released

Bug description:
  SRU justification:

  [Impact] Launchpad can't import some source packages from Debian unstable.  The fix is to cherry-pick changes from unstable that support unpacking (but, for minimality, not creating) such source packages.
  [Test Case] For the format 3.0 case, download the limnoria source package from Debian unstable and unpack it with "dpkg-source -x".  For the format 1.0 case, there are no examples as yet in unstable, but it's easy to construct one: download a 1.0 package (e.g. makepasswd), sign its .orig.tar.gz with "gpg --armor --clearsign", rebuild the source package using unstable's toolchain, and then try to unpack it with "dpkg-source -x" in precise/trusty.
  [Regression Potential] Confined to "dpkg-source -x", so it should be sufficient to check that unpacking packages without .orig.*.asc still works.

  Original report follows:

  https://launchpad.net/debian/+source/vlc/ is missing Debian branches
  for sid and stretch.

  This then also breaks auto-sync of some of Debian's packages to
  Ubuntu's development branch.

  This is apparently what broke the auto-import:

  dpkg-source: error: unrecognized file for a v2.0 source package:
  vlc_2.2.3.orig.tar.xz.asc

  See this discussion about including .asc files in Debian source packages which requires dpkg to be updated:
  https://lists.debian.org/debian-dpkg/2016/05/msg00041.html

  Initial discussion:
  http://irclogs.ubuntu.com/2016/05/31/%23ubuntu-devel.html#t22:44

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