yum and filelists

[Ville Skyttä]

Hello,

>From a moment ago on a F8 box:

$ sudo yum upgrade
[...]
Setting up Upgrade Process
Resolving Dependencies
--> Running transaction check
---> Package pcre.i386 0:7.3-3.fc8 set to be updated
---> Package pam.i386 0:0.99.8.1-17.fc8 set to be updated
filelists.sqlite.bz2      100% |=========================| 3.5 MB    00:03
filelists.sqlite.bz2      100% |=========================|  14 kB    00:00
--> Finished Dependency Resolution
[...]

I'm just curious, why did yum download those filelists?  I thought 
non-filelists repodata among other paths contains file dependency information 
for /bin and /sbin.  Only pam and pcre were being updated, but neither has 
file deps to anywhere else; after the above update:

$ rpm -qR pcre pam | grep / | sort -u
/bin/sh
/sbin/ldconfig