BUG #16257: 12.2 rpm packages size increase vs 12.1

The following bug has been logged on the website:

Bug reference: 16257
Logged by: Olivier Gaborieau
Email address: olivier(dot)gaborieau(at)sercel(dot)com
PostgreSQL version: 12.2
Operating system: RHEL6
Description:

This is not a so-called bug.
However, I am surprised that some of the 12.2 rpm packages are significantly
bigger than 12.1 packages.
It rang a bell to me as the sizes used to be pretty stable between minor
releases.
As it is only a bug-fixing release, I just want to ensure everything is OK
with the new packages.

Here are some of the concerned packages :

postgresql12-12.2-1PGDG.rhel6.x86_64 [2.7 MiB] Changelog by Devrim Gündüz
(2020-02-11):
postgresql12-12.1-1PGDG.rhel6.x86_64 [1.6 MiB] Changelog by Devrim Gündüz
(2019-11-11):

postgresql12-contrib-12.2-1PGDG.rhel6.x86_64 [1.7 MiB] Changelog by Devrim
Gündüz (2020-02-11):
postgresql12-contrib-12.1-1PGDG.rhel6.x86_64 [531 KiB] Changelog by Devrim
Gündüz (2019-11-11):

postgresql12-server-12.2-1PGDG.rhel6.x86_64 [12.1 MiB] Changelog by Devrim
Gündüz (2020-02-11):
postgresql12-server-12.1-1PGDG.rhel6.x86_64 [5.4 MiB] Changelog by Devrim
Gündüz (2019-11-11):

Thanks in advance.

Regards,

Olivier Gaborieau