python-dbg and other python packages in xenial got wrong timeframe set for support time

The python* packages from 16.04 have the wrong support timeframe set into the package info. Therefore they are falsely shown as unsupported on the "ubuntu-support-status" output:

~$ apt show python-dbg
Package: python-dbg
Version: 2.7.11-1
Priority: extra
Section: python
Source: python-defaults
Origin: Ubuntu
Maintainer: Ubuntu Developers <email address hidden>
Original-Maintainer: Matthias Klose <email address hidden>
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 25,6 kB
Depends: python (= 2.7.11-1), libpython-dbg (= 2.7.11-1), python2.7-dbg (>= 2.7.11-1~)
Homepage: http://www.python.org/
Supported: 9m
Download-Size: 1.252 B
APT-Sources: http://de.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
Description: Debugversion des Python-Interpreters (Version 2.7)
 Dieser Python-Interpreter wurde mit --pydebug konfiguriert. Dynamisch
 ladbare Module sucht er zuerst in /usr/lib/python2.7/lib-dynload/debug.

This should be set to the 5years LTS timeframe (since its in main) and not to 9months.