[pacman-dev] download / database problems

Today I got very strange results downloading packages with pacman. For example : gnome-common-2.28.0... 8,9K 112,2K/s 00:00:00 [#####################] 21167%

ls -lh /var/cache/pacman/pkg/gnome-common-2.28.0-1-any.pkg.tar.gz -rw-r--r-- 1 root root 8,9K sept. 24 00:17 /var/cache/pacman/pkg/gnome-common-2.28.0-1-any.pkg.tar.gz

/var/lib/pacman/sync/gnome-unstable/gnome-common-2.28.0-1/desc:%CSIZE% /var/lib/pacman/sync/gnome-unstable/gnome-common-2.28.0-1/desc-43 43 bytes instead of 8900 ? wtf ?