[oMa37]

If you look at the video, you will see that you had 5 ammo before you spawn the cheated ammo, and after you shoot 5 ammo while you have the cheated ammo it removed the weapon.
Which basically means, if the player has 200 ammo and spawned more 200 (total 400 ammo), he still can shoot the first 200 ammo.

Also, your include had some crash reports in my console which I didn't bother fixing.