[Libguestfs] Error in chunked encoding

Hello, Oz is a program that does automated installation of virtual machines. It is written in python and uses libguestfs pretty heavily to manipulate ISOs and disks. Someone reported an error against Oz here: https://github.com/clalancette/oz/issues/140 There are some more details in the issue, but it essentially looks like something happened during libguestfs tar_out: RuntimeError: /dev/fd/13: error in chunked encoding Has anyone seen this before? Any idea what this is about? If you want to comment, I would appreciate it if you could comment in the issue itself. Thanks, Chris