BUG #16209: cant install via https://www.postgresql.org/download/linux/redhat/

The following bug has been logged on the website:

Bug reference: 16209
Logged by: Павел Кулевцов
Email address: vpaulo(at)rambler(dot)ru
PostgreSQL version: 12.1
Operating system: centos 8
Description:

# dnf -qy module disable postgresql
[root(at)app1 yum.repos.d]# dnf install postgresql12
Last metadata expiration check: 0:02:36 ago on Thu 16 Jan 2020 07:58:18 AM
EST.
No match for argument: postgresql12
Error: Unable to find a match: postgresql12
[root(at)app1 yum.repos.d]# dnf install postgresql12-server
Last metadata expiration check: 0:03:49 ago on Thu 16 Jan 2020 07:58:18 AM
EST.
No match for argument: postgresql12-server
Error: Unable to find a match: postgresql12-server
[root(at)app1 yum.repos.d]# yum clean all
39 files removed
[root(at)app1 yum.repos.d]# dnf install postgresql12-server
CentOS-8 - AppStream

8.4 MB/s | 5.8 MB 00:00
CentOS-8 - Base

6.0 MB/s | 4.0 MB 00:00
CentOS-8 - Extras

4.1 kB/s | 2.1 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64

13 kB/s | 10 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64

6.5 MB/s | 5.2 MB 00:00
No match for argument: postgresql12-server
Error: Unable to find a match: postgresql12-server
[root(at)app1 yum.repos.d]# dnf install
https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm
Last metadata expiration check: 0:00:14 ago on Thu 16 Jan 2020 08:02:25 AM
EST.
pgdg-redhat-repo-latest.noarch.rpm

47 kB/s | 10 kB 00:00
Package pgdg-redhat-repo-42.0-6.noarch is already installed.
Dependencies resolved.
Nothing to do.
Complete!
[root(at)app1 yum.repos.d]# dnf ipgrade
No such command: ipgrade. Please use /usr/bin/dnf --help
It could be a DNF plugin command, try: "dnf install
'dnf-command(ipgrade)'"
[root(at)app1 yum.repos.d]# dnf upgrade
Last metadata expiration check: 0:01:19 ago on Thu 16 Jan 2020 08:02:25 AM
EST.
Dependencies resolved.
Nothing to do.
Complete!
[root(at)app1 yum.repos.d]# dnf update
Last metadata expiration check: 0:01:25 ago on Thu 16 Jan 2020 08:02:25 AM
EST.
Dependencies resolved.
Nothing to do.
Complete!
[root(at)app1 yum.repos.d]# dnf install postgresql12-server
Last metadata expiration check: 0:04:58 ago on Thu 16 Jan 2020 08:02:25 AM
EST.
No match for argument: postgresql12-server
Error: Unable to find a match: postgresql12-server
[root(at)app1 yum.repos.d]#