Change return type of ItemStack#editMeta to allow checking for successful vs non-successful edits

Spigot-API-Patches/0307-ItemStack-editMeta.patch

@@ -5,10 +5,10 @@ Subject: [PATCH] ItemStack#editMeta
 
 
 diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java
-index 0f8c593ae9bca46081f0b22c2d763a2699175398..08599c42e4f80a7b8306792c5af0c34aa598a7f6 100644
+index 1bd9f7582bb907ff178fd110fdc92834885d1d78..3e2c08641edffcf00b230ad624685aaff30af0e5 100644
 --- a/src/main/java/org/bukkit/inventory/ItemStack.java
 +++ b/src/main/java/org/bukkit/inventory/ItemStack.java
-@@ -542,6 +542,21 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, net.kyor
+@@ -542,6 +542,24 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, net.kyor
          return result.ensureServerConversions(); // Paper
      }
  
@@ -17,13 +17,16 @@ index 0f8c593ae9bca46081f0b22c2d763a2699175398..08599c42e4f80a7b8306792c5af0c34a
 +     * Edits the {@link ItemMeta} of this stack.
 +     *
 +     * @param consumer the meta consumer
++     * @return {@code true} if the edit was successful, {@code false} otherwise
 +     */
-+    public void editMeta(final @NotNull java.util.function.Consumer<? super ItemMeta> consumer) {
++    public boolean editMeta(final @NotNull java.util.function.Consumer<? super ItemMeta> consumer) {
 +        final ItemMeta meta = this.getItemMeta();
 +        if (meta != null) {
 +            consumer.accept(meta);
 +            this.setItemMeta(meta);
++            return true;
 +        }
++        return false;
 +    }
 +    // Paper end
 +