Blink occasionally emits mosh command into open session

I'm running 12.9(99) from Testflight, but this bug has been present for several releases.

On resuming a mosh session by opening the blink app, blink will occasionally emit the commandline I used to open the session into the running session.

IE, I leave blink open at a bash prompt and on resuming blink, it emits "mosh hostname" into the session and I see:

$ mosh hostname
bash: mosh hostname: command not found

I can provide screenshots but would prefer them not public.

Start by reproducing the issue when resuming the Blink app with an existing mosh session left at a bash prompt. Trace the app-resume and session-input path; done means the original `mosh hostname` command is no longer emitted into the open session, including across repeated resumes.

Written by the indexing model from the issue text.