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
This bug was fixed in the package dpkg - 1.18.4ubuntu1.4
---------------
dpkg (1.18.4ubuntu1.4) xenial; urgency=medium
* Cherry-pick d01212f2d7e59fc 713c66b5d60421a c2296c1463 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