So, the current status is that things are mostly back to
normal/working, however there are still a few repos that we have old
metalink data for (fedora 22 updates testing x86_64).
We are working on updating all those and hopefully everything will be
back to normal later today.
http://status.fedoraproject.org/ will be updated once those last few
repos are synced.
For these kinds of problems a ticket to fedora infrastructure is
probibly the right place to report them, IMHO.
kevin