Infinite free items in the skin creator

The bug is performed by tapping A on the item and then double tapping B really fast and then for more items back out the skin menu until its says "The character has been saved" then rinse and repeat this even works in severs and everyone else including your self can see it in game. It will disappear after loging out of minecraft

 

Sorry for the loud clicking and bad quality or not really knowing what version it is