This was broken in a few ways, but most noteably by the change
in the method name in the FOSS class which is overridden in EE.

This change introduces fixes for this, and a wider range of tests
(missing regression tests were the reason this was not detected),
and marks the method as overriding the FOSS implementation, guaranteeing
that we will notice if a similar upstream change happens again.

Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/298840