Initiate multipart upload key contain "&" response with malformed xml

[pybt]

Put file with s3cmd that will trigger multipart upload.

s3cmd put filename_contain_\&.test s3://leofs-test-8080

Leofs response

<?xml version="1.0" encoding="UTF-8"?>
<InitiateMultipartUploadResult>
    <Bucket>leofs-test-8080</Bucket>
    <Key>filename-contain-&.test</Key>
    <UploadId>ea6c9a81436749bb8004da2af1a13ae6</UploadId>
</InitiateMultipartUploadResult>

Expected response

<?xml version="1.0" encoding="UTF-8"?>
<InitiateMultipartUploadResult>
    <Bucket>leofs-test-8080</Bucket>
    <Key>filename-contain-&amp;.test</Key> 
    <UploadId>ea6c9a81436749bb8004da2af1a13ae6</UploadId>
</InitiateMultipartUploadResult>

This problem also occur in Complete multipart upload.

[yosukehara]

Thank you for sharing this issue. I'll check it then fix it.