[Pkg-mailman-hackers] Bug#881622: mailman3-core: uninstallable in sid: sed: -e expression #1, char 65: unknown option to `s'

[Dmitry Shachnev]

Package: mailman3-core
Version: 3.1.0-3
Severity: serious

Dear maintainer,

In a clean sid chroot I get this error when trying to install mailman3-core:

  Setting up mailman3-core (3.1.0-3) ...
  dbconfig-common: writing config to /etc/dbconfig-common/mailman3-core.conf

  Creating config file /etc/dbconfig-common/mailman3-core.conf with new version
  chown: invalid user: 'postgres'
  unable to connect to postgresql server.
  error encountered creating user:
  No passwd entry for user 'postgres'
  dbconfig-common: mailman3-core configure: noninteractive fail.
  dbconfig-common: mailman3-core configure: ignoring errors from here forwards
  dbconfig-common: flushing administrative password
  sed: -e expression #1, char 65: unknown option to `s'
  dpkg: error processing package mailman3-core (--configure):
   installed mailman3-core package post-installation script subprocess returned error exit status 1

This can be also seen in CI logs:
https://ci.debian.net/data/autopkgtest/unstable/amd64/m/mailman3-core/20171113_143457/log.gz

--
Dmitry Shachnev
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