Quoting SingingMountains' comment from the forge page:

What about when the item has more than one recipe?

For example, I wanted to uncraft Sandstone Slab into Sandstone, but I get the back-recipe with Vertical Sandstone Slab instead.

Simple Uncrafting Table (Fabric/Forge) has this feature but your mod seems to be more nuanced, would be great if it included this as well.