Changes

Summary

1. #764 Add earlier checks for empty ItemStacks (details)

Commit 22cc782a516923b2fd66fafb87de46c6a8015438 by mezz #764 Add earlier checks for empty ItemStacks
	src/main/java/mezz/jei/RecipeRegistry.java (diff)
	src/main/java/mezz/jei/input/ClickedIngredient.java (diff)
	src/main/java/mezz/jei/gui/Focus.java (diff)