Do Premium Cubes or Revolutionary Cubes turn a 3 line into a 2 line?

There was a brief period of time, years ago, when potential was glitched and both lines and potential stats were randomized whenever you cubed, regardless of which kind of cube you used. You can read about it here: http://www.southperry.net/showthread.php?t=49453

This isn't a function of the cubes themselves, it was just a glitch and it's been fixed for a long time now.