Can be found here:
http://forums.civfanatics.com/showthread.php?t=194490

Works even for HOF mods and Warlords.

Wow, kind of makes you wonder how many of the posted victories in GOTM and the HOF have been won using bugs like this. I hope this gets addressed right away in the next HOF mod. Thanks for posting this, Lexad.

Needless to say, regardless of whether it gets fixed in the next HoF Mod, it is meanwhile banned from use in the GOTM competitions.

I've posted possible solution idea in the thread, hope it helps.