bad timing or sinister repo errors?

[Tom Horsley]

I've just been doing a yum update on my F10 partitions, and
I'm seeing these yum errors I can't ever remember seeing
before:

(2/8): kernel-firmware-2.6.27.5-94.fc10.noarch.rpm       | 350 kB     00:00     
http://fedora.mirrors.tds.net/pub/fedora/development/i386/os/Packages/kernel-firmware-2.6.27.5-94.fc10.noarch.rpm: [Errno -1] Package does not match intended download
(3/8): kernel-headers-2.6.27.5-94.fc10.i386.rpm          | 745 kB     00:00     
http://mirror.cc.vt.edu/pub/fedora/linux/development/i386/os/Packages/kernel-headers-2.6.27.5-94.fc10.i386.rpm: [Errno -1] Package does not match intended download
Trying other mirror.
(6/8): kernel-devel-2.6.27.5-94.fc10.i686.rpm            | 5.4 MB     00:00     
http://ftp.linux.ncsu.edu/pub/fedora/linux/development/i386/os/Packages/kernel-devel-2.6.27.5-94.fc10.i686.rpm: [Errno -1] Package does not match intended download
Trying other mirror.
(7/8): kernel-doc-2.6.27.5-94.fc10.noarch.rpm            | 9.3 MB     00:00     
http://mirror.hiwaay.net/pub/fedora/linux/development/i386/os/Packages/kernel-doc-2.6.27.5-94.fc10.noarch.rpm: [Errno -1] Package does not match intended download
Trying other mirror.
(8/8): kernel-2.6.27.5-94.fc10.i686.rpm                  |  19 MB     00:00     
http://mirror.unl.edu/fedora/linux/development/i386/os/Packages/kernel-2.6.27.5-94.fc10.i686.rpm: [Errno -1] Package does not match intended download
Trying other mirror.

Are these just mirrors in the process of being updated that have incomplete
copies of the packages, or is something more serious screwed up?