Properly apply Sign#isEditable to TEs when calling BlockState#update

Spigot-Server-Patches/copy-TESign-isEditable-from-snapshots.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Shane Freeder <theboyetronic@gmail.com>
+Date: Tue, 23 Mar 2021 06:43:30 +0000
+Subject: [PATCH] copy TESign#isEditable from snapshots
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java b/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java
+@@ -0,0 +0,0 @@ public class CraftSign extends CraftBlockEntityState<TileEntitySign> implements
+             }
+             // Paper end
+         }
++        sign.isEditable = getSnapshot().isEditable; // Paper - copy manually
+     }
+ 
+     // Paper start