I did a fresh install of 9.2 a few days ago. Tried applying fix and had the same error as ldkeen.
"Error: Package: smeserver-yum-2.4.0-30.el6.sme.noarch (smeupdates)
Requires: yum-plugin-post-transaction-actions"
added to smeupdates so it should not block anymore
give it a few hours to sync to your local mirror