Fix #5856 Entity origin (#5861)

patches/server/0392-Prevent-Double-PlayerChunkMap-adds-crashing-server.patch

@@ -7,7 +7,7 @@ Suspected case would be around the technique used in .stopRiding
 Stack will identify any causer of this and warn instead of crashing.
 
 diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
-index 7e62a86e4ab376c47340d96620f6b1df19fa95ca..f75a78f60565be1c8e8b0ce5f3937441f59e1f29 100644
+index 1d22a2179fcd3b613bea609770b551c7702a581e..db7eb46f3b77835d1b5b67674d2e66fb99cc2fb7 100644
 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java
 +++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
 @@ -1507,6 +1507,14 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
@@ -26,10 +26,10 @@ index 7e62a86e4ab376c47340d96620f6b1df19fa95ca..f75a78f60565be1c8e8b0ce5f3937441
              EntityType<?> entitytypes = entity.getType();
              int i = entitytypes.clientTrackingRange() * 16;
 diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
-index cb1efab5c5cfd47cfbdab609009cc6a5cd6f1dc4..fca0453ee83f7592e7ad7c572e238202247a93a1 100644
+index cafd2299ccc0a803f6c7e131c49644b6bdf508a6..a3b7bcdda3465e4ae8a9cdb8169673f2c7dbce5d 100644
 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java
 +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
-@@ -2106,7 +2106,7 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
+@@ -2100,7 +2100,7 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
  
          public void onTrackingStart(Entity entity) {
              org.spigotmc.AsyncCatcher.catchOp("entity register"); // Spigot
@@ -38,11 +38,11 @@ index cb1efab5c5cfd47cfbdab609009cc6a5cd6f1dc4..fca0453ee83f7592e7ad7c572e238202
              if (entity instanceof ServerPlayer) {
                  ServerLevel.this.players.add((ServerPlayer) entity);
                  ServerLevel.this.updateSleepingPlayerList();
-@@ -2128,6 +2128,7 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
+@@ -2122,6 +2122,7 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
              }
  
              entity.valid = true; // CraftBukkit
 +            ServerLevel.this.getChunkSource().addEntity(entity);
-         }
- 
-         public void onTrackingEnd(Entity entity) {
+             // Paper start - Set origin location when the entity is being added to the world
+             if (entity.getOriginVector() == null) {
+                 entity.setOrigin(entity.getBukkitEntity().getLocation());