Smithing statistics aren't increased when output was taken with quick transfer.

When taking the smithing screen handler's output, "onCraft" is called on an itemstack of unknown source. The mentioned itemstack is either empty (0 air) on quick transfer or the recipe's output stack when the recipe output was taken manually. This results in smithing statistics for mentioned output stack to not be increased.

A screen recording is provided to reproduce this issue as easy as possible.