Player can obtain item with count 0

Public video with glitch and solution: http://youtu.be/ubTPsW4SbSE

How to reproduce:

1. Place a chest and put the item you want to obtain with count of 0 in the first slot
2. Place TNT next to the chest
3. Empty the first slot of your hotbar
4. Ignite the TNT and open the chest
5. Now hover over the item and spam the "1" key

You will eventually end up with the item with count 0