dpkg-source on xenial doesn't support .asc file in .dsc for v1.0 source format

Hello Timo, or anyone else affected,

Accepted dpkg into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/dpkg/1.18.4ubuntu1.4 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

(xenial-amd64)root@nosferatu:/home/adconrad/xorg# grep '\.asc' xorg-server*dsc
 4d761e7fb1595637beb035c0b300e1b93d30fdb7 705 xorg-server_1.19.6.orig.tar.gz.asc
 d4672cc887a2037708dbc21e261fc1264d2808feb1f9d85b40ae7848fbb19443 705 xorg-server_1.19.6.orig.tar.gz.asc
 4708215dc9dd371ceee52c7760d7fc5c 705 xorg-server_1.19.6.orig.tar.gz.asc
(xenial-amd64)root@nosferatu:/home/adconrad/xorg# dpkg -l libdpkg-perl | grep ^i
ii libdpkg-perl 1.18.4ubuntu1.3 all Dpkg perl modules
(xenial-amd64)root@nosferatu:/home/adconrad/xorg# dpkg-source -x xorg-server_1.19.6*dsc
gpgv: Signature made Thu Feb 22 10:59:56 2018 MST using RSA key ID A88984DC
gpgv: Can't check signature: public key not found
dpkg-source: warning: failed to verify signature on ./xorg-server_1.19.6-1ubuntu2.dsc
dpkg-source: info: extracting xorg-server in xorg-server-1.19.6
dpkg-source: error: unrecognized file for a v1.0 source package: xorg-server_1.19.6.orig.tar.gz.asc
(xenial-amd64)root@nosferatu:/home/adconrad/xorg# apt-get install libdpkg-perl
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  dpkg-dev
Suggested packages:
  debian-keyring
Recommended packages:
  libalgorithm-merge-perl libfile-fcntllock-perl
The following packages will be upgraded:
  dpkg-dev libdpkg-perl
2 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
Need to get 779 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
Get:1 http://us.archive.ubuntu.com/ubuntu xenial-proposed/main amd64 dpkg-dev all 1.18.4ubuntu1.4 [584 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu xenial-proposed/main amd64 libdpkg-perl all 1.18.4ubuntu1.4 [195 kB]
Fetched 779 kB in 0s (1011 kB/s)
(Reading database ... 15190 files and directories currently installed.)
Preparing to unpack .../dpkg-dev_1.18.4ubuntu1.4_all.deb ...
Unpacking dpkg-dev (1.18.4ubuntu1.4) over (1.18.4ubuntu1.3) ...
Preparing to unpack .../libdpkg-perl_1.18.4ubuntu1.4_all.deb ...
Unpacking libdpkg-perl (1.18.4ubuntu1.4) over (1.18.4ubuntu1.3) ...
Setting up libdpkg-perl (1.18.4ubuntu1.4) ...
Setting up dpkg-dev (1.18.4ubuntu1.4) ...
(xenial-amd64)root@nosferatu:/home/adconrad/xorg# dpkg-source -x xorg-server_1.19.6*dsc
gpgv: Signature made Thu Feb 22 10:59:56 2018 MST using RSA key ID A88984DC
gpgv: Can't check signature: public key not found
dpkg-source: warning: failed to verify signature on ./xorg-server_1.19.6-1ubuntu2.dsc
dpkg-source: info: extracting xorg-server in xorg-server-1.19.6
dpkg-source: info: unpacking xorg-server_1.19.6.orig.tar.gz
dpkg-source: info: applying xorg-server_1.19.6-1ubuntu2.diff.gz
dpkg-source: info: upstream files that have been modified:
 xorg-server-1.19.6/.dir-locals.el
 xorg-server-1.19.6/config/dbus-api
 xorg-server-1.19.6/damageext/damageext.h
 xorg-server-1.19.6/doc/c-extensions
 xorg-server-1.19.6/fix-miregion
 xorg-server-1.19.6/fix-miregion-private
 xorg-server-1.19.6/fix-patch-whitespace
 xorg-server-1.19.6/fix-region
 xorg-server-1.19.6/hw/kdrive/Xkdrive.man
 xorg-server-1.19.6/hw/kdrive/fbdev/Xfbdev.man
 xorg-server-1.19.6/hw/xfree86/os-suppor...

This bug was fixed in the package dpkg - 1.18.4ubuntu1.4

---------------
dpkg (1.18.4ubuntu1.4) xenial; urgency=medium

  * Cherry-pick d01212f2d7e59fc713c66b5d60421ac2296c1463 from 1.18.5:
    - Allow detached upstream orig tarball signatures when extracting
      version 1.0 non-native source packages (LP: #1751114)

 -- Adam Conrad <email address hidden> Wed, 14 Mar 2018 13:17:08 -0600

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.