Rewrite regenerateChunkRegion

src/main/java/carpet/mixins/ChunkTicketManager_scarpetChunkCreationMixin.java

@@ -0,0 +1,26 @@
+package carpet.mixins;
+
+import java.util.Set;
+
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+
+import carpet.fakes.ChunkTicketManagerInterface;
+import net.minecraft.server.world.ChunkHolder;
+import net.minecraft.server.world.ChunkTicketManager;
+
+@Mixin(ChunkTicketManager.class)
+public abstract class ChunkTicketManager_scarpetChunkCreationMixin implements ChunkTicketManagerInterface
+{
+    @Shadow
+    @Final
+    private Set<ChunkHolder> chunkHolders;
+
+    @Override
+    public void replaceHolder(final ChunkHolder oldHolder, final ChunkHolder newHolder)
+    {
+        this.chunkHolders.remove(oldHolder);
+        this.chunkHolders.add(newHolder);
+    }
+}