if !etag.ContentMD5Requested(formValues) && (kind == crypto.SSEC || kind == crypto.S3KMS || !globalServerCtxt.StrictS3Compat) {
		forceMD5 = mustGetUUIDBytes()
	}

	hashReader, err := hash.NewReaderWithOpts(ctx, reader, hash.Options{
		Size:       actualSize,
		MD5Hex:     clientETag.String(),
		SHA256Hex:  "",
		ActualSize: actualSize,
		DisableMD5: false,
		ForceMD5:   forceMD5,
	})