Bug#912724: www.debian.org: wrong links to translations of "Debian Developer's Reference"

[Lev Lamberov <dogsleg@debian.org>]

Package: www.debian.org
Severity: normal
Tags: l10n

Dear Maintainer,

Debian Developer's Reference on the Debian's website [reference]
contains wrong links to translations of the documantation. That is,
French translation is linked as index.fr.en.html (where it should be
index.fr.html) and so on. The same problem holds for translations,
that is French translation [reference-fr] links to Italian as
index.it.fr.html (where it should be index.it.html).

[reference-en] https://www.debian.org/doc/manuals/developers-reference/index.en.html

[reference-fr] https://www.debian.org/doc/manuals/developers-reference/index.fr.html

I guess the problem is with the content negotiation, since there's no
such problems both in the source code of the documentation and in the
documentation provided in the package developers-reference (and its
translations). It may be possible that content negotiation breaks some
other links to translated documentation in the same way.

With regards,
Lev

-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.18.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8), LANGUAGE=ru_RU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled