From 237edb701f26cf54ca4de3c0c860a5d61fa2ce50 Mon Sep 17 00:00:00 2001
From: dordsor21 <dordsor21@gmail.com>
Date: Sun, 10 May 2026 16:57:48 +0100
Subject: [PATCH] fix: correct lazycopy dimensions and world usage

---
 .../core/extent/clipboard/SimpleClipboard.java | 12 +++++++++++-
 .../extent/clipboard/WorldCopyClipboard.java   | 18 ++++++++++++++----
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/SimpleClipboard.java b/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/SimpleClipboard.java
index f902f60070..a6a51bb72e 100644
--- a/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/SimpleClipboard.java
+++ b/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/SimpleClipboard.java
@@ -17,7 +17,8 @@ public abstract class SimpleClipboard implements Clipboard {
         this.size = dimensions;
         this.offset = offset;
         long longVolume = (long) getWidth() * (long) getHeight() * (long) getLength();
-        if (longVolume >= Integer.MAX_VALUE) {
+        long maxSize = getMaxSize();
+        if (maxSize != -1 && longVolume >= maxSize) {
             throw new IllegalArgumentException("Dimensions are too large for this clipboard format.");
         }
         this.area = getWidth() * getLength();
@@ -25,6 +26,15 @@ public abstract class SimpleClipboard implements Clipboard {
         this.origin = BlockVector3.ZERO;
     }
 
+    /**
+     * Get the maximum size allowed by this clipboard implementation
+     *
+     * @return maximum size in blocks of this clipboard implementation.
+     */
+    public long getMaxSize() {
+        return Integer.MAX_VALUE;
+    }
+
     SimpleClipboard(Region region) {
         this(region.getDimensions(), region.getMinimumPoint());
     }
diff --git a/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/WorldCopyClipboard.java b/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/WorldCopyClipboard.java
index b4e30abacd..14e598d120 100644
--- a/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/WorldCopyClipboard.java
+++ b/worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/WorldCopyClipboard.java
@@ -1,5 +1,8 @@
 package com.fastasyncworldedit.core.extent.clipboard;
 
+import com.fastasyncworldedit.core.Fawe;
+import com.fastasyncworldedit.core.queue.implementation.SingleThreadQueueExtent;
+import com.fastasyncworldedit.core.util.ExtentTraverser;
 import com.sk89q.worldedit.EditSession;
 import com.sk89q.worldedit.EditSessionBuilder;
 import com.sk89q.worldedit.WorldEdit;
@@ -39,10 +42,7 @@ public WorldCopyClipboard(Supplier<Extent> supplier, Region region) {
      */
     @Deprecated(forRemoval = true, since = "2.13.0")
     public WorldCopyClipboard(Supplier<Extent> supplier, Region region, boolean hasEntities, boolean hasBiomes) {
-        super(region);
-        this.hasBiomes = hasBiomes;
-        this.hasEntities = hasEntities;
-        this.extent = supplier.get();
+        this(supplier.get(), region, hasEntities, hasBiomes);
     }
 
     private WorldCopyClipboard(Extent extent, Region region, boolean hasEntities, boolean hasBiomes) {
@@ -50,6 +50,11 @@ private WorldCopyClipboard(Extent extent, Region region, boolean hasEntities, bo
         this.hasBiomes = hasBiomes;
         this.hasEntities = hasEntities;
         this.extent = extent;
+        if (new ExtentTraverser<>(extent).find(SingleThreadQueueExtent.class) != null) {
+            // If we have a SingleThreadQueueExtent present, uncache so it cannot be used again for pasting (and therefore
+            // potentially resetting the world)
+            Fawe.instance().getQueueHandler().unCache();
+        }
     }
 
     public static WorldCopyClipboard of(Extent extent, Region region) {
@@ -64,6 +69,11 @@ public static WorldCopyClipboard of(Extent extent, Region region, boolean hasEnt
         return new WorldCopyClipboard(extent, region, hasEntities, hasBiomes);
     }
 
+    @Override
+    public long getMaxSize() {
+        return -1;
+    }
+
     public Extent getExtent() {
         return extent;
     }