SPIGOT-536: Delay physics updates for tall plants until both parts are set

nms-patches/BlockTallPlant.patch

@@ -0,0 +1,25 @@
+--- ../work/decompile-8eb82bde//net/minecraft/server/BlockTallPlant.java	2015-02-07 10:08:04.520216186 +0000
++++ src/main/java/net/minecraft/server/BlockTallPlant.java	2015-02-07 10:08:04.520216186 +0000
+@@ -55,16 +55,20 @@
+             Object object1 = flag ? world.getType(blockposition2).getBlock() : this;
+ 
+             if (object == this) {
+-                world.setTypeAndData(blockposition1, Blocks.AIR.getBlockData(), 3);
++                world.setTypeAndData(blockposition1, Blocks.AIR.getBlockData(), 2); // CraftBukkit
+             }
+ 
+             if (object1 == this) {
+-                world.setTypeAndData(blockposition2, Blocks.AIR.getBlockData(), 3);
++                world.setTypeAndData(blockposition2, Blocks.AIR.getBlockData(), 2); // CraftBukkit
+                 if (!flag) {
+                     this.b(world, blockposition2, iblockdata, 0);
+                 }
+             }
+ 
++            // CraftBukkit start - delay updates
++            world.update(blockposition1, this);
++            world.update(blockposition2, this);
++            // CraftBukkit end
+         }
+     }
+