Duplication Glitch

Okay, so, this "glitch" i found a while ago, and i tried to reproduce to see if it worked like i now know, is about duplicating an item with function (right click). Ex: A bow.

The thing with it is, i must use a Rod, wether it is an enchanted one or not, doesnt matters..If i charge a Bow to its max capability, then select the Rod and instantly right click too, it will clonate it for some miliseconds, in which you're able to see it before it goes back to normal.

BUT the main problem is, that if u keep doing it, you really manage to clone the bow in the end, doesnt matters if it takes you 10 minutes, you will be able to do so.

Thanks in advance.