Paper/patches/server/0714-Fix-Entity-Position-Desync.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Thu, 23 Dec 2021 23:59:12 -0500
Subject: [PATCH] Fix Entity Position Desync
If entities were teleported in the first tick it would not be send to the client.
This excludes hanging entities, as this fix caused problematic behavior due to them having their own
position field.
diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
index c881d6ea6acbcbd1414a0b7d6b5a26076244e34e..b52f86e23a35f8727d827155ebb20f847108d673 100644
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
@@ -171,7 +171,7 @@ public class ServerEntity {
boolean flag4 = false;
boolean flag5 = false;
- if (this.tickCount > 0 || this.entity instanceof AbstractArrow) {
+ if (!(this.entity instanceof net.minecraft.world.entity.decoration.HangingEntity) || this.tickCount > 0 || this.entity instanceof AbstractArrow) { // Paper - Always update position to fix first-tick teleports
long k = this.positionCodec.encodeX(vec3d);
long l = this.positionCodec.encodeY(vec3d);
long i1 = this.positionCodec.encodeZ(vec3d);