From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sat, 30 Apr 2022 00:38:57 +0100
Subject: [PATCH] Sign cleanup filtering

TODO: This logic here should be moved into a DataFixer in the next MC release
noting to ensure to apply the cleanup logic here, and clean up the added
tags

diff --git a/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
index 6371176fba41218a209ea59b4cafe5b2d4a685fd..d5bcc81a809e3c733c6fc11309bcf0913860edf6 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/SignBlockEntity.java
@@ -72,6 +72,7 @@ public class SignBlockEntity extends BlockEntity implements CommandSource { // C
         }
         // CraftBukkit end
 
+        nbt.putBoolean("Paper.cleanedFiltered", true); // Paper
         nbt.putString("Color", this.color.getName());
         nbt.putBoolean("GlowingText", this.hasGlowingText);
     }
@@ -88,6 +89,7 @@ public class SignBlockEntity extends BlockEntity implements CommandSource { // C
         boolean oldSign = Boolean.getBoolean("convertLegacySigns") && !nbt.getBoolean("Bukkit.isConverted");
         // CraftBukkit end
 
+        boolean cleanedFiltered = nbt.getBoolean("Paper.cleanedFiltered"); // Paper
         for (int i = 0; i < 4; ++i) {
             String s = nbt.getString(SignBlockEntity.RAW_TEXT_FIELD_NAMES[i]);
             // CraftBukkit start
@@ -105,7 +107,7 @@ public class SignBlockEntity extends BlockEntity implements CommandSource { // C
             this.messages[i] = ichatbasecomponent;
             String s1 = SignBlockEntity.FILTERED_TEXT_FIELD_NAMES[i];
 
-            if (nbt.contains(s1, 8)) {
+            if (cleanedFiltered && nbt.contains(s1, 8)) { // Paper
                 this.filteredMessages[i] = this.loadLine(nbt.getString(s1));
             } else {
                 this.filteredMessages[i] = ichatbasecomponent;