Delta rpm times and reliability?

[Tom Horsley]

Is it my imagination, or is it taking fantastically longer
in f19 to do the "rebuild rpms from delta" phase of yum
update?

It also seems like there are always a half dozen or so
rpms that report deltas don't match and it has to download
the whole thing. (The update I just did had dbus-libs and
a bunch of nss* rpms that didn't match as well as some others
I don't remember).