Issues with Google Chrome, PyCharm, Steam and other third-party repos in Fedora 29 prereleases

[Stephen Gallagher]

It was discovered[1] a short while ago that, due to a packaging
mistake in the fedora-workstation-repos package, upgrades from Fedora
28->Fedora 29 would replace the /etc/yum.repos.d/*.repo files provided
from that package with their default configuration.

What this meant in practice is that anyone who was using those
repositories in Fedora 28 would find them silently disabled in Fedora
29. In particular, this would mean that they might not notice that
they were not receiving updates, particularly (in the case of Chrome)
security updates.

This has been fixed for F29 Final, but if you have upgraded from
F28->F29 prior to today (such as at the Beta release), you should
check and verify that your expected repos are correctly enabled.

You can verify which repositories on your system are enabled or
disabled by running the command:
`dnf repolist --all`

If you discover that any of your expected repos have been disabled,
they can be re-enabled with:
`dnf config-manager --set-enabled <repo_name>`

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1640626