Bug#807131: gcc-5-base amd64+i386 not coinstallable because of changelog.Debian.gz mismatch

[Ben Caradoc-Davies <ben@transient.nz>]

Package: gcc-5-base
Version: 5.3.0-3
Severity: important

Dear Maintainer,

a conflict between changelog.Debian.gz on i386 and amd64 breaks multiarch. Note
also that libstdc++6 depends on gcc-5-base so removing one arch breaks all C++
applications for that arch.

Result of "apt-get dist-upgrade":

[...]
Preparing to unpack .../gcc-5-base_5.3.0-3_amd64.deb ...
De-configuring gcc-5-base:i386 (5.2.1-27) ...
Unpacking gcc-5-base:amd64 (5.3.0-3) over (5.2.1-27) ...
Preparing to unpack .../gcc-5-base_5.3.0-3_i386.deb ...
Unpacking gcc-5-base:i386 (5.3.0-3) over (5.2.1-27) ...
dpkg: error processing archive
/var/cache/apt/archives/gcc-5-base_5.3.0-3_i386.deb (--unpack):
 trying to overwrite shared '/usr/share/doc/gcc-5-base/changelog.Debian.gz',
which is different from other instances of package gcc-5-base:i386
[...]

Kind regards,
Ben.



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

Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8)