Paper/patches/server/0437-Fix-sand-duping.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Fri, 12 Jun 2020 13:33:19 -0700
Subject: [PATCH] Fix sand duping
If the falling block dies during teleportation (entity#move), then we need
to detect that by placing a check after the move.
diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
index f12eafb49c2536f91f4716188c931ad97264c113..e234373432f34f237f884f7054c0d80829228522 100644
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--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
@@ -120,6 +120,11 @@ public class FallingBlockEntity extends Entity {
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@Override
public void tick() {
+ // Paper start - fix sand duping
+ if (this.isRemoved()) {
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+ return;
+ }
+ // Paper end - fix sand duping
if (this.blockState.isAir()) {
this.discard();
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} else {
@@ -132,6 +137,12 @@ public class FallingBlockEntity extends Entity {
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this.move(MoverType.SELF, this.getDeltaMovement());
+ // Paper start - fix sand duping
+ if (this.isRemoved()) {
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+ return;
+ }
+ // Paper end - fix sand duping
+
// Paper start - Configurable EntityFallingBlock height nerf
if (this.level.paperConfig.fallingBlockHeightNerf != 0 && this.getY() > this.level.paperConfig.fallingBlockHeightNerf) {
if (this.dropItem && this.level.getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {