Manually close stdin for container

[lefinal]

With Docker, there is an option to close stdin after the first attached client has disconnected. In Podman, no such feature exists. I already opened an issue for Podman here. Although, not being familiar with the Podman codebase, I dug around a little and from what I understood, conmon handles the container's standard I/O. Is it correct that conmon does not support closing stdin manually? Or did I miss something?