If I use dbutils.fs.cp on a cluster running DBR 13.3LTS to try to copy an object on S3 from one prefix to another, I don't get the expected results.

For example, if I try the following command:

dbutils.fs.cp('s3://some-bucket/some/prefix/some_file.gz', 's3://some-bucket/other/prefix/')

I would expect the call to result in a copy of some_file.gz to be put into s3://some-bucket/other/prefix/, also named some_file.gz.  Instead, what I'm seeing as the result is a file named s3://some-bucket/other/prefix.

This does not match the behavior seen previously.