Merge pull request #17593 from iterate-ch/bugfix/GH-17456

Logging.

Author: dkocher

s3/src/main/java/ch/cyberduck/core/s3/S3VersionedObjectListService.java

@@ -156,6 +156,7 @@ public AttributedList<Path> list(final Path directory, final ListProgressListene
                     if(new SimplePathPredicate(PathNormalizer.compose(bucket, URIEncoder.decode(common))).test(directory)) {
                         continue;
                     }
+                    log.debug("Handle common prefix {}", common);
                     folders.add(this.submit(pool, bucket, directory, URIEncoder.decode(common)));
                 }
                 for(Future<Path> f : folders) {
@@ -226,13 +227,15 @@ public Path call() throws BackgroundException {
                         final BaseVersionOrDeleteMarker version = versions.getItems()[0];
                         if(URIEncoder.decode(version.getKey()).equals(prefix)) {
                             attr.setVersionId(version.getVersionId());
+                            log.debug("Set trashed attribute for prefix {}", key);
                             attr.setTrashed(version.isDeleteMarker());
                         }
                         // No placeholder but objects inside; need to check if all of them are deleted
                         final StorageObjectsChunk unversioned = session.getClient().listObjectsChunked(
                                 bucket.isRoot() ? StringUtils.EMPTY : bucket.getName(), prefix,
                                 null, 1, null, false);
                         if(unversioned.getObjects().length == 0) {
+                            log.debug("Set duplicate attribute for prefix {}", key);
                             attr.setDuplicate(true);
                         }
                     }