Description of problem:
If a package to be installed includes files that is already on the system, owned by other packages, and different, it will complain about the conflict.  If I wanted the already existing version of the file to remain, I believe I have previously explicitly excluded the file in question with --excludepath.  This no longer seems to work.  RPM complains about the files even when excluded.

Version-Release number of selected component (if applicable):
rpm-4.7.0-1.fc11.x86_64

How reproducible:
Every time

Steps to Reproduce:
I note this on some non-distribution packages, but to illustrate the problem, you can try to install an old fedora-release package:

rpm -U --excludepath /usr/share/doc/HTML/index.html --excludepath /usr/share/firstboot/modules/eula.py fedora-release-3.90-2.noarch.rpm

Actual results:
This still gives the complaint

        file /usr/share/firstboot/modules/eula.py from install of fedora-release-3.90-2.noarch conflicts with file from package firstboot-1.105-2.fc11.x86_64

and the corresponding error for the index.html file and the fedora-release-notes package.

Expected results:
With the excludepath arguments, the downgrade should work.  (At least as far as file conflicts are concerned.  Other dependency issues could likely turn up.  I of course don't recommend actually doing this, but it is a simple way to illustrate the problem with a package from a distribution.)