Do not apply optimization to subclasses of ItemValue

forge/src/main/java/org/embeddedt/modernfix/forge/recipe/IngredientValueDeduplicator.java

@@ -22,7 +22,7 @@ public class IngredientValueDeduplicator {
     });
 
     public static Ingredient.Value deduplicate(Ingredient.Value value) {
-        if (value instanceof Ingredient.ItemValue) {
+        if (value.getClass() == Ingredient.ItemValue.class) {
             synchronized (VALUES) {
                 return VALUES.addOrGet((Ingredient.ItemValue)value);
             }