Add a few more checks for sanity on the new ability buffs.

src/main/java/com/gmail/nossr50/listeners/InventoryListener.java

@@ -14,7 +14,6 @@ import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryCloseEvent;
 import org.bukkit.event.inventory.InventoryOpenEvent;
 import org.bukkit.event.inventory.InventoryType;
-import org.bukkit.inventory.AnvilInventory;
 import org.bukkit.inventory.FurnaceInventory;
 import org.bukkit.inventory.ItemStack;
 
@@ -134,8 +133,6 @@ public class InventoryListener implements Listener{
 
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     public void onInventoryClickEvent(InventoryClickEvent event) {
-        if (event.getInventory() instanceof AnvilInventory) {
-            SkillTools.removeAbilityBuff(event.getCurrentItem());
-        }
+        SkillTools.removeAbilityBuff(event.getCurrentItem());
     }
 }

src/main/java/com/gmail/nossr50/listeners/PlayerListener.java

@@ -146,7 +146,10 @@ public class PlayerListener implements Listener {
 
         if (playerProfile.getAbilityMode(AbilityType.GIGA_DRILL_BREAKER) || playerProfile.getAbilityMode(AbilityType.SUPER_BREAKER)) {
             event.setCancelled(true);
+            return;
         }
+
+        SkillTools.removeAbilityBuff(event.getItemDrop().getItemStack());
     }
 
     /**

src/main/java/com/gmail/nossr50/skills/utilities/SkillTools.java

@@ -30,6 +30,7 @@ import com.gmail.nossr50.locale.LocaleLoader;
 import com.gmail.nossr50.mods.ModChecks;
 import com.gmail.nossr50.spout.SpoutConfig;
 import com.gmail.nossr50.spout.SpoutTools;
+import com.gmail.nossr50.util.ItemChecks;
 import com.gmail.nossr50.util.Misc;
 import com.gmail.nossr50.util.ParticleEffectUtils;
 import com.gmail.nossr50.util.Permissions;
@@ -544,6 +545,10 @@ public class SkillTools {
             return item;
         }
 
+        if (!ItemChecks.isPickaxe(item) && !ItemChecks.isShovel(item)) {
+            return item;
+        }
+
         if (item.containsEnchantment(Enchantment.DIG_SPEED)) {
             ItemMeta itemMeta = item.getItemMeta();