Reasonably sure this needs to be this way

src/main/java/com/gmail/nossr50/skills/repair/Repair.java

@@ -127,14 +127,14 @@ public class Repair {
 
         if (recipe instanceof ShapelessRecipe) {
             for (ItemStack ingredient : ((ShapelessRecipe) recipe).getIngredientList()) {
-                if (ingredient != null && (repairMaterial == null || ingredient.getType() == repairMaterial) && (repairMetadata == -1 || ingredient.getData() == repairData)) {
+                if (ingredient != null && (repairMaterial == null || ingredient.getType() == repairMaterial) && (repairMetadata == -1 || ingredient.getData().equals(repairData))) {
                     quantity += ingredient.getAmount();
                 }
             }
         }
         else if (recipe instanceof ShapedRecipe) {
             for (ItemStack ingredient : ((ShapedRecipe) recipe).getIngredientMap().values()) {
-                if (ingredient != null && (repairMaterial == null || ingredient.getType() == repairMaterial) && (repairMetadata == -1 || ingredient.getData() == repairData)) {
+                if (ingredient != null && (repairMaterial == null || ingredient.getType() == repairMaterial) && (repairMetadata == -1 || ingredient.getData().equals(repairData))) {
                     quantity += ingredient.getAmount();
                 }
             }