BUG #16355: (packaging) [pgdg12-source] is used multiple times in /etc/yum.repos.d/pgdg-redhat-all.repo

The following bug has been logged on the website:

Bug reference:      16355
Logged by:          Gerwin Krist
Email address:      g.krist@linqhost.nl
PostgreSQL version: Unsupported/Unknown
Operating system:   RHEL 8
Description:

In /etc/yum.repos.d/pgdg-redhat-all.repo the pgdg12-source is defined 2
times. This is not valid to my knowledge. And for example Puppet goes mad
because of this.