From 770706b73b1c9a69a1b1472e06d9d5c0f4da5193 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Sun, 23 Sep 2018 20:59:53 -0500
Subject: [PATCH] Honor EntityAgeable.ageLock


diff --git a/src/main/java/net/minecraft/server/EntityAgeable.java b/src/main/java/net/minecraft/server/EntityAgeable.java
index 652b178f1..b0c07560b 100644
--- a/src/main/java/net/minecraft/server/EntityAgeable.java
+++ b/src/main/java/net/minecraft/server/EntityAgeable.java
@@ -82,6 +82,7 @@ public abstract class EntityAgeable extends EntityCreature {
     }
 
     public void setAge(int i, boolean flag) {
+        if (ageLocked) return; // Paper - GH-1459
         int j = this.getAge();
         int k = j;
 
-- 
2.20.0