Hi all, I'm implementing a logic which uploads objects to S3. As part of the testing I've noticed that when trying to upload an object of size 0 using pre-signed URLs we're getting a 501 Not Implemented from the server (AWS). This does not happen when we upload the object via lakeFS. Is anyone familiar with this issue or a way to work around that?

Are you doing it with the Go SDK? If so, you might be running into this

Not using the SDK - using an http client. Also AFAIK we're still using SDK V1

go's http client?

Yup

Are you passing a body? (perhaps a non-nil 0 byte reader?)

Yup - that's the bug