Does sync s3 to s3 works in s3cmd version 1.1.0-beta3

Does sync s3 to s3 works in s3cmd version 1.1.0-beta3 ?

# s3cmd --version
s3cmd version 1.1.0-beta3

Getting following error :

# s3cmd sync --exclude 'reportTemplate/*' 'orders/*' 'customers/*' s3://xxx-storage-bucket-prod-env/ s3://xxxx-storage-bucket-test-env/

ERROR: Parameter problem: Expecting filename or directory instead of: s3://inksedge-app-file-storage-bucket-prod-env/