Is there an S4CMD version of --no-mime-magic

Question

I am using S3CMD successfully and the --no-mime-magic flag to have it use the same content-type as original source.

However S4CMD runs faster and I'd prefer to use it. I don't see any equivilant flag of --no-mime-magic though. Is there one maybe called something else?

https://github.com/bloomreach/s4cmd

https://github.com/s3tools/s3cmd