downloaded game

Starting new game
Difficulty cakewalk
everything supersized

If you're hitting "back" button while looking at "choose civ ability" screen and then "next" you can see that all previously chosen additional abilities had been added for a second time. And the little text in bottom right is saying -10 ability points.

Now the fun part: hit next, then hit back two times, and then next (coming to "choose civ ability" screen again: -20 ability points. Repeat till your heart content...