From 0000000000000000000000000000000000000000 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/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index e6cf145fa7a2968c70e9e467e3927fd38e199e06..223f8d9be5d73e296f5815db7123b95c3b345162 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1389,6 +1389,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
 
     @Override
     public void updateNeighborsAt(BlockPos pos, Block sourceBlock) {
+        if (captureBlockStates) { return; } // Paper - Cancel all physics during placement
         this.neighborUpdater.updateNeighborsAtExceptFromFacing(pos, sourceBlock, (Direction) null);
     }