Tnt Cloning Glitch

Watch video: By activating tnt and a piston at the same time the TNT is cloned. But the cloned can either work or not.

Here on google drive: https://drive.google.com/file/d/1I3r82AmYHvhnPA0bahlSB-PuYtUNID0h/view?usp=sharing

The contraption but to see it working watch video