Invalidate furnace block type after change.

nms-patches/TileEntityFurnace.patch

@@ -1,5 +1,5 @@
---- ../work/decompile-c2c33c10/net/minecraft/server/TileEntityFurnace.java	2015-05-21 17:23:15.279886524 +1000
-+++ src/main/java/net/minecraft/server/TileEntityFurnace.java	2015-05-21 17:23:15.283886599 +1000
+--- ../work/decompile-c2c33c10/net/minecraft/server/TileEntityFurnace.java	2015-05-21 19:02:24.117651149 +1000
++++ src/main/java/net/minecraft/server/TileEntityFurnace.java	2015-05-21 19:02:24.117651149 +1000
 @@ -1,17 +1,53 @@
  package net.minecraft.server;
  
@@ -70,7 +70,7 @@
  
      public void c() {
 -        boolean flag = this.isBurning();
-+        boolean flag = (this.w() == Blocks.LIT_FURNACE); // CraftBukkit - SPIGOT-844 - Check if furnace block is lit using the block instead of burn time
++        boolean flag = (this.w() == Blocks.LIT_FURNACE); // CraftBukkit - SPIGOT-844 - Check if furnace block is lit using the block instead of burn time // PAIL: Rename
          boolean flag1 = false;
  
 +        // CraftBukkit start - Use wall time instead of ticks for cooking
@@ -130,7 +130,7 @@
                  if (this.isBurning() && this.canBurn()) {
                      ++this.cookTime;
                      if (this.cookTime == this.cookTimeTotal) {
-@@ -179,6 +246,7 @@
+@@ -179,11 +246,13 @@
                  } else {
                      this.cookTime = 0;
                  }
@@ -138,7 +138,13 @@
              }
  
              if (flag != this.isBurning()) {
-@@ -203,7 +271,8 @@
+                 flag1 = true;
+                 BlockFurnace.a(this.isBurning(), this.world, this.position);
++                this.E(); // CraftBukkit - Invalidate tile entity's cached block type // PAIL: Rename
+             }
+         }
+ 
+@@ -203,7 +272,8 @@
          } else {
              ItemStack itemstack = RecipesFurnace.getInstance().getResult(this.items[0]);
  
@@ -148,7 +154,7 @@
          }
      }
  
-@@ -211,11 +280,38 @@
+@@ -211,11 +281,38 @@
          if (this.canBurn()) {
              ItemStack itemstack = RecipesFurnace.getInstance().getResult(this.items[0]);