Fix mappingregistry, readd an async chunk hunk

patches/server/0252-Optimize-MappedRegistry.patch

@@ -8,7 +8,7 @@ Use larger initial sizes to increase bucket capacity on the BiMap
 BiMap.get was seen to be using a good bit of CPU time.
 
 diff --git a/src/main/java/net/minecraft/core/MappedRegistry.java b/src/main/java/net/minecraft/core/MappedRegistry.java
-index 3b9eb0d19623a8a8e60f785edfd2faadba54ce84..9fd8c67f6b389350a82b341ff0a5d55f5c5c228c 100644
+index 3b9eb0d19623a8a8e60f785edfd2faadba54ce84..0ae87b1ee3373a7eead633fa2a85d64f8d88bcaf 100644
 --- a/src/main/java/net/minecraft/core/MappedRegistry.java
 +++ b/src/main/java/net/minecraft/core/MappedRegistry.java
 @@ -38,12 +38,10 @@ public class MappedRegistry<T> extends WritableRegistry<T> {
@@ -28,11 +28,10 @@ index 3b9eb0d19623a8a8e60f785edfd2faadba54ce84..9fd8c67f6b389350a82b341ff0a5d55f
      private Lifecycle elementsLifecycle;
      @Nullable
      protected Object[] randomCache;
-@@ -51,7 +49,7 @@ public class MappedRegistry<T> extends WritableRegistry<T> {
- 
+@@ -52,6 +50,7 @@ public class MappedRegistry<T> extends WritableRegistry<T> {
      public MappedRegistry(ResourceKey<? extends Registry<T>> key, Lifecycle lifecycle) {
          super(key, lifecycle);
--        this.elementsLifecycle = lifecycle;
+         this.elementsLifecycle = lifecycle;
 +        this.toId.defaultReturnValue(-1); // Paper
      }