I would usually remove Alpha issues that are resolved in Beta today,
yes. This is mentioned in the box at the top:
"Fedora 18 has not yet been released. During this pre-release period,
this page will cover known issues in the Fedora 18 pre-releases.
Issues
that are fixed will be removed from the page once a fix is available
(for instance, an issue that affects the Beta but is fixed in the
final
release will be removed at the time of that release)."
Sigh, the most visible box is that one that I failed to notice at all :-)
Thanks.