PaperMC/patches/unapplied/server/0025-Only-refresh-abilities-if-needed.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Tue, 1 Mar 2016 23:12:03 -0600
Subject: [PATCH] Only refresh abilities if needed


diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index b139868f1c84a97d145634d37cf0f658871f93c6..767bb340e4d7c1cd96a097145c9a9ad0cd2509b9 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1460,12 +1460,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
 
     @Override
     public void setFlying(boolean value) {
+        boolean needsUpdate = getHandle().getAbilities().flying != value; // Paper - Only refresh abilities if needed
         if (!this.getAllowFlight() && value) {
             throw new IllegalArgumentException("Cannot make player fly if getAllowFlight() is false");
         }
 
         this.getHandle().getAbilities().flying = value;
-        this.getHandle().onUpdateAbilities();
+        if (needsUpdate) this.getHandle().onUpdateAbilities(); // Paper - Only refresh abilities if needed
     }
 
     @Override