podman start --attach does not connect stdin by default

[rohanlean]

Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line)

/kind bug

Description

Steps to reproduce the issue:

1. podman create -ti --name nostdin busybox

2. podman start -a nostdin

Describe the results you received:
Podman does not attach stdin.

Describe the results you expected:
Podman does attach stdin.

Additional information you deem important (e.g. issue happens only occasionally):
Running podman start -ai instead works around this.

For version information see #4258.

[mheon]

I need to double-check against Docker, but I think the expected behavior is to set -i by default if the container was created with -i

[github-actions]

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