The bug

In the current snapshots, when you click and hold on an item with two recipes, it works as expected. However, when only clicking once, it can default to crafting with an item you don't have in your inventory.

Steps to reproduce

1. Get 9 golden nuggets
2. Go into the crafting book, and click on the gold ingot recipe once (No click & hold)
3. The recipe defaults to the gold block, instead of the golden nugget recipe you can use