Description of problem:

Since upgrading to Spacewalk 2.4, I can no longer install updates to packages with no defined epoch in CentOS 5.  This appears to be due to the fix for bug 1172288 in commit 83330778.  When I revert this change in packages.py, package updates work again for CentOS 5.

pkg.returnEVR().compare(evr) appears to return > 0 when comparing an epoch of 0 (installed package) with None (target package).

Version-Release number of selected component (if applicable):

yum-rhn-plugin-2.4.6-1.el5

How reproducible:

100%

Steps to Reproduce:
1. Attempt to schedule an update to a package with no epoch on a CentOS 5 system
2. Run rhn_check

Actual results:

The task completes, but no work is done, because "More recent version of package <name> is already installed."

Expected results:

The package should be updated.