I don't have this hack installed on 2.2.9 right now. I un-installed it when I couldn't get the time and date to show for the double post and haven't re-installed it yet. I clicked the install button just now, anyway, though.
I know we went through this when I had 2.2.5 up and running, but I don't remember how we did it. I want to add an option in the Admin CP to turn it off if I need to do some testing on the site and be able to turn it back on again. maybe even have it be able to be disabled for Admins. Any ideas?