From b4bdae9a2b04c0adae191946e187b19c9b193483 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 3 Apr 2016 17:48:50 -0400
Subject: [PATCH] Fix Cancelling BlockPlaceEvent triggering physics


diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 0e1bcdd..9b9d2d7 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -527,6 +527,7 @@ public abstract class World implements IBlockAccess {
     }
 
     public void applyPhysics(BlockPosition blockposition, Block block) {
+        if (captureBlockStates) { return; } // Paper - Cancel all physics during placement
         this.e(blockposition.west(), block);
         this.e(blockposition.east(), block);
         this.e(blockposition.down(), block);
-- 
2.8.0