F10 Fresh Vanilla Install with Updates Has Broken NetworkManager

[Jud Craft]

That makes sense.  Then the obvious answer is that enabling Updates
should also enable the default online repository, which has a slightly
wider collection of packages than the DVD and may be needed to fill in
dependencies pulled down by the Updates.

Packages should be grabbed by default from Updates, then from the DVD
(if no update required), then from the default repository (if not on
the DVD), in that order.

I'll make sure to enable the main repository as well next time.
Bummer that packages have to change their dependencies through the
lifetime of one Fedora release.