Add TODO for leaf

patches/server/0403-Fix-Chunk-Post-Processing-deadlock-risk.patch

@@ -24,6 +24,37 @@ the executor so that the mailbox ChunkQueue is now considered empty.
 This successfully fixed a reoccurring and highly reproduceable crash
 for heightmaps.
 
+TODO FOR LEAF: 1.18.2 changed this
+
+OLD
+
+        CompletableFuture<Either<LevelChunk, ChunkHolder.ChunkLoadingFailure>> completablefuture1 = completablefuture.thenApplyAsync((either) -> {
+            return either.flatMap((list) -> {
+                LevelChunk chunk = (LevelChunk) list.get(list.size() / 2);
+
+                chunk.postProcessGeneration();
+                this.level.startTickingChunk(chunk);
+                return Either.left(chunk);
+            });
+        }, (runnable) -> {
+            this.mainThreadMailbox.tell(ChunkTaskPriorityQueueSorter.message(holder, () -> ChunkMap.this.chunkLoadConversionCallbackExecutor.execute(runnable))); // Paper - delay running Chunk post processing until outside of the sorter to prevent a deadlock scenario when post processing causes another chunk request.
+        });
+
+NEW
+
+        CompletableFuture<Either<LevelChunk, ChunkHolder.ChunkLoadingFailure>> completablefuture1 = completablefuture.thenApplyAsync((either) -> {
+            return either.mapLeft((list) -> {
+                return (LevelChunk) list.get(list.size() / 2);
+            });
+        }, (runnable) -> {
+            this.mainThreadMailbox.tell(ChunkTaskPriorityQueueSorter.message(holder, () -> ChunkMap.this.chunkLoadConversionCallbackExecutor.execute(runnable))); // Paper - delay running Chunk post processing until outside of the sorter to prevent a deadlock scenario when post processing causes another chunk request.
+        }).thenApplyAsync((either) -> {
+            return either.ifLeft((chunk) -> {
+                chunk.postProcessGeneration();
+                this.level.startTickingChunk(chunk);
+            });
+        }, this.mainThreadExecutor);
+
 diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
 index 7e3f7b69fc7a608dd82b471d832cc401a77f0738..aeae3fb3d05b513031e4af217fe3db7fa3ec4a75 100644
 --- a/src/main/java/net/minecraft/server/level/ChunkMap.java