Are POT templates compressed twice?

[Camaleón <noelamac+gmane@gmail.com>]

Hello,

Almost all of the POT files grabbed from here¹ seem to be double 
compressed. I need to rename them in order to get an usable POT file from 
the original GZ. 

For instance:

sm01@stt008:~$ file Escritorio/dyfi_1.2.0-2_templates.pot.gz 
Escritorio/dyfi_1.2.0-2_templates.pot.gz: gzip compressed data, from Unix

sm01@stt008:~$ gunzip Escritorio/dyfi_1.2.0-2_templates.pot.gz 

sm01@stt008:~$ file Escritorio/dyfi_1.2.0-2_templates.pot 
Escritorio/dyfi_1.2.0-2_templates.pot: gzip compressed data, was 
"templates.pot", from Unix, last modified: Mon Sep 21 16:28:31 2015, max 
compression

sm01@stt008:~$ mv Escritorio/dyfi_1.2.0-2_templates.pot Escritorio/
dyfi_1.2.0-2_templates.pot.gz
                         
sm01@stt008:~$ gunzip Escritorio/dyfi_1.2.0-2_templates.pot.gz

sm01@stt008:~$ file Escritorio/dyfi_1.2.0-2_templates.pot 
Escritorio/dyfi_1.2.0-2_templates.pot: GNU gettext message catalogue, 
ASCII text

¹https://www.debian.org/international/l10n/po-debconf/pot

Greetings,

-- 
Camaleón