From f78ee3cdf59990c2d828a298c6bf4c06bcd82dc0 Mon Sep 17 00:00:00 2001
From: Iceee <andrew@opticgaming.tv>
Date: Wed, 2 Mar 2016 12:03:23 -0600
Subject: [PATCH] Stop updating flowing block if material has changed


diff --git a/src/main/java/net/minecraft/server/BlockFlowing.java b/src/main/java/net/minecraft/server/BlockFlowing.java
index f35f30c..1f07f82 100644
--- a/src/main/java/net/minecraft/server/BlockFlowing.java
+++ b/src/main/java/net/minecraft/server/BlockFlowing.java
@@ -101,6 +101,7 @@ public class BlockFlowing extends BlockFluids {
             this.f(world, blockposition, iblockdata);
         }
 
+        if (world.getType(blockposition).getBlock().getBlockData().getMaterial() != material) return; // Paper - Stop updating flowing block if material has changed
         IBlockData iblockdata2 = world.getType(blockposition.down());
 
         if (this.h(world, blockposition.down(), iblockdata2)) {
-- 
2.7.2