SSH command with closed stdin doesn't work

[HavinLeung]

I have a CentOS 8 box that's running tlog and running into an easily reproducible bug.

Expected behaviour:

me@my-box $ ssh -n me@other-box 'echo hello world'
hello world
me@my-box $

Actual behaviour:

me@my-box $ ssh -n me@other-box 'echo hello world'

ATTENTION! Your session is being recorded!

me@my-box $

I see two bugs here in my opinion:

1. Commands just aren't being run when stdin is closed on ssh
   • omitting the -n flag makes it work as expected
   • this holds true for all commands I've tried including echo, ps, ls, touch
2. The "session is being recorded" message should probably only be printed for interactive sessions