Survival inventory not showing picked up items in creative

I've found a bug with 12w50a and 12w50b, if you fill in your hotbar with any item (slot 1-9) and then start throwing stacked items on the ground next to you so you are picking them up from the creative menu then they will not appear once you go into inventory tab, to show them you have to open a chest, crafting table etc... and then they will appear in your inventory.
Video: http://www.youtube.com/watch?v=CIKk1K3I6Bo