(paelzer-bionic-merge)andreas@nsnx:~/git/packages/dovecot$ git branch
* paelzer-bionic-merge
  ubuntu/devel
(paelzer-bionic-merge)andreas@nsnx:~/git/packages/dovecot$ git ubuntu lint
12/01/2017 11:28:32 - ERROR:Unable to automatically determine importer branch: Multiple candidate branches found and they do not target the same series: pkg/debian/sid, pkg/debian/buster. Please pass --target-branch.
(paelzer-bionic-merge)andreas@nsnx:~/git/packages/dovecot$ git ubuntu lint --target-branch pkg/debian/sid
12/01/2017 11:28:38 - ERROR:Unable to automatically determine importer branch: Multiple candidate branches found and they do not target the same series: pkg/debian/buster, pkg/debian/sid. Please pass --target-branch.
(paelzer-bionic-merge)andreas@nsnx:~/git/packages/dovecot$