Paper/patches/server/0547-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 8c32f34a3bf03f4e95bf961f33e6e98368e7e961..cd791e727bf66ff32ffeeae68e5c110502fbdd37 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1933,6 +1933,11 @@ 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);
});