I`ve noticed the strangest thing on 2 of my Chili plants, it`s hard to describe in text, but it`s a bit like the leaf starts off as normal but it has 2 tips! the center vein seems to spilt half way and it forks into a Y and makes what would look like 2 new leaf ends?

almost like a heart shape, the leaves are perfectly healthy and grow proportionaly with the other leaves and are the same color and thickness, the plant itself is perfectly happy and bearing flowers and fruit.

does anyone know what causes this or what it`s called?
is it normal?

I`ve been growing chilis and bell peppers for a few years now (not on the scale I`m working with this year 40+ plants)
and I`ve never noticed it in the past on any of my others, THIS year, I`ve got 2 plants that have done it, 1 Jalapeno, and 1 Marconi Long Red.

Cheerz