Paper/patches/server/0545-Remove-stale-POIs.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sat, 9 Jan 2021 14:17:07 +0100
Subject: [PATCH] Remove stale POIs
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 8866507da8474e4eee767fdf6f83b95c92fb5767..f8832ebb35ceb7f70e12d6c11f435308de4ae33d 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1931,6 +1931,11 @@ public class ServerLevel extends Level implements WorldGenLevel {
});
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optional1.ifPresent((holder) -> {
this.getServer().execute(() -> {
+ // Paper start
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+ if (optional.isEmpty() && this.getPoiManager().exists(blockposition1, poiType -> true)) {
+ this.getPoiManager().remove(blockposition1);
+ }
+ // Paper end
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this.getPoiManager().add(blockposition1, holder);
DebugPackets.sendPoiAddedPacket(this, blockposition1);
});