Double leaf?

I have 1 plant that has a 4 tipped leaf when it should only have three. Is this some kind of mutation? This plant has been through hell: broken stem and 125 degrees+ temp in a fridge when I forgot to turn the fan on. But It's incredibly resilient because its perfectly healthy as of today. Here is a pic:

Nothing wrong with your plant. Mj does not have to have three leaflets. some plants have up to 15 leaflets if fed heavily and get lots of light intensity.

I guess its getting enough light then... that's good because it's a cfl grow