[ovirt-users] Upgrade to 3.5.3 fails on ovirt-engine-notifier service

I just upgraded from 3.5.1 to 3.5.3 and found the end of engine-setup failed because of the ovirt-engine-notifier service. The logs indicate that the MAIL_SERVER option was not set. I had set this before via Puppet and know it was working because right before I started the upgrade I was receiving event notifications. It appears as though the RPM (or some other mechanism) set the config file at /usr/share/ovirt-engine/services/ovirt-engine-notifier/ovirt-engine-notifier.conf back to its original state with my changes removed. Attached is the log from engine-setup. Is this a bug? I was able to work around this by manually setting MAIL_SERVER back to the value I had already set previously and then re-running engine-setup. Even after re-running engine-setup I noticed I had to manually start ovirt-engine-notifier service. Thanks, - Trey