Up2date yum rawhide channel says that all updates are 0kB

[Harry Putnam]

"Jaap A. Haitsma" <jaap_haitsma at zonnet.nl> writes:

> I noticed since the up2date channel has changed to the yum rawhide
> channel that when up2date presents you the list of all packages that
> can be upgraded it says that all packages are 0kB. Anybody else seeing
> it? Is this a bug or just a "feature" of yum?

What does OkB mean?