sesman-restart error

[ikappaki]

(This issue was reported by @chopptimus in PR #3333)

Expected behavior

sesman-restart should restart the REPL session

Actual behavior

The client connection is closed with the following error message

error in process filter: Selecting deleted buffer

Steps to reproduce the problem

1. Create an empty bb.edn file with {} and open it
2. Alt-x cider-jack-in-clj, it should open a bb nREPL session
3. Alt-x sesman-restart, the session is closed and the above message is thrown.

Environment & Version information

CIDER version information

Include here the version string displayed when
CIDER's REPL is launched. Here's an example:

;; CIDER 1.6.0 (Buenos Aires), babashka.nrepl 0.0.6-SNAPSHOT
;; Babashka 1.3.181

Emacs version

28.2

Operating system

Any

This is a regression issue introduced with #3278; as discussed in #3333, will amend the PR to update dosctring and add a test.