Bug#949327: reprotest fails in dpkg conffile question

[Laurent Bigonville]

Package: reprotest
Version: 0.7.12
Severity: important

Hi,

When using schroot, reprotest fails due to the dpkg conffile question:

Setting up netbase (6.0) ...

Configuration file '/etc/protocols'
 ==> File on system created by you or by a script.
 ==> File also in package provided by package maintainer.
   What would you like to do about it ?  Your options are:
    Y or I  : install the package maintainer's version
    N or O  : keep your currently-installed version
      D     : show the differences between the versions
      Z     : start a shell to examine the situation
 The default action is to keep your current version.
*** protocols (Y/I/N/O/D/Z) [default=N] ? dpkg: error processing package netbase (--configure):
 end of file on stdin at conffile prompt

"-o Dpkg::Options::=--force-confnew" should be added when calling
apt-get build-dep and maybe at other places

Kind regards,

Laurent Bigonville

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.4.0-2-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND
Locale: LANG=fr_BE.UTF-8, LC_CTYPE=fr_BE.UTF-8 (charmap=UTF-8), LANGUAGE=fr_BE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: SELinux: enabled - Mode: Permissive - Policy name: refpolicy

Versions of packages reprotest depends on:
ii  apt-utils              1.8.4
ii  diffoscope             135
ii  libdpkg-perl           1.19.7
ii  procps                 2:3.3.15-2+b1
ii  python3                3.7.5-3
ii  python3-debian         0.1.36
ii  python3-distro         1.3.0-2
ii  python3-pkg-resources  44.0.0-1
ii  python3-rstr           2.2.6-2

Versions of packages reprotest recommends:
pn  disorderfs   <none>
pn  faketime     <none>
ii  locales-all  2.29-9
ii  sudo         1.8.29-1

Versions of packages reprotest suggests:
ii  autodep8     0.22
pn  qemu-system  <none>
ii  qemu-utils   1:4.2-1
ii  schroot      1.6.10-8

-- no debconf information