Bug#974899: libdatetime-timezone-perl: Inconsistent Olson versions within Timezone data

[Ben Smithurst]

Package: libdatetime-timezone-perl
Version: 1:2.09-1+2020d
Severity: important

Dear Maintainer,

There seems to be an internally inconsistency in this package in that
the Olson versions defined in timezones are inconsistent:

% dpkg -L libdatetime-timezone-perl | xargs grep olson_version 2>/dev/null | cut -d' ' -f3 | sort | uniq -c
      2
    175 {'2019c'}
    185 {'2020d'}

This leads to warnings appearing:

Loaded DateTime::TimeZone::Europe::London, which is from a different version (2020d) of the Olson database than this installation of DateTime::TimeZone (2019c).


-- System Information:
Debian Release: 9.2
  APT prefers oldstable-updates
  APT policy: (500, 'oldstable-updates'), (500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-8-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8), LANGUAGE=en_GB.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libdatetime-timezone-perl depends on:
ii  libclass-singleton-perl                1.5-1
ii  libmodule-runtime-perl                 0.014-2
ii  libnamespace-autoclean-perl            0.28-1
ii  libparams-validationcompiler-perl      0.23-1
ii  libscalar-list-utils-perl              1:1.47-1
ii  libspecio-perl                         0.33-1
ii  libtry-tiny-perl                       0.28-1
ii  perl                                   5.24.1-3+deb9u5
ii  perl-base [libscalar-list-utils-perl]  5.24.1-3+deb9u5

Versions of packages libdatetime-timezone-perl recommends:
ii  libdatetime-perl  2:1.42-1

libdatetime-timezone-perl suggests no packages.

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