Add changelog

Author: RanVaknin

.changes/next-release/bugfix-S3TransferManager-e28a164.json

@@ -0,0 +1,6 @@
+{
+    "type": "bugfix",
+    "category": "S3 Transfer Manager",
+    "contributor": "",
+    "description": "Fixed an issue where cancelling a directory transfer did not fully stop the operation."
+}

services-custom/s3-transfer-manager/src/main/java/software/amazon/awssdk/transfer/s3/internal/AsyncBufferingSubscriber.java

@@ -48,7 +48,7 @@ public AsyncBufferingSubscriber(Function<T, CompletableFuture<?>> consumer,
                                     CompletableFuture<Void> returnFuture,
                                     int maxConcurrentExecutions) {
         this.returnFuture = returnFuture;
-        this.consumer = consumer;   
+        this.consumer = consumer;
         this.maxConcurrentExecutions = maxConcurrentExecutions;
         this.numRequestsInFlight = new AtomicInteger(0);
         this.requestsInFlight = ConcurrentHashMap.newKeySet();