Bug#672309: dd-list: binary pkgs built from same source -> "Unknown package"

[Jakub Wilk]

Package: devscripts
Version: 2.11.7
User: devscripts at packages.debian.org
Usertags: dd-list

dd-list doesn't like when I pass it names of multiple binary packages 
that are built from the same source:

$ dd-list anjuta > /dev/null && echo ok
ok

$ dd-list anjuta-common > /dev/null && echo ok
ok

$ dd-list anjuta anjuta-common > /dev/null && echo ok
E: Unknown package: anjuta-common

-- 
Jakub Wilk