Bug Brewing Stand Stackable !

Resumo do erro !

• What I expected to happen was ...: *
  That was not posivel put potions stacked in Brewing Stand!

• What really happened was ...: *
  using the command / give player generates 373 64 64 Stacked pots with water and put in posivel Brewing Stand the 64 pots stacked!

• Steps to reproduce: *
  get ingredients to make potion and give / give player 373 64 ai put the 64 Potion Brewing Stand piled on and you spend just one ingredient!

Video showing the bug:
http://www.youtube.com/watch?v=bLky6bbsrzI&feature=youtu.be