Cloning Gunpowder.

I give a horse wheat.

then I get rid of all the wheat

but i then give the horse wheat and it dosent "kick me" anymore

then i get gunpowder

i get two but they don't stack and when i stack them and exit my inventory i drop one more and it dosent stack and then i drop ANOTHER one and it loops over and over and over again.

GUNPOWDER FOR THE FOREVERS!!!?!