bug#68799: 30.0.50; emacs --fg-daemon fails silently if server-start fails

[Eli Zaretskii]

> From: Björn Bidar <bjorn.bidar@thaodan.de>
> Cc: sbaugh@janestreet.com,  68799@debbugs.gnu.org
> Date: Wed, 14 Feb 2024 17:10:39 +0200
> 
> 0. User logs in
> 1. The session reaches graphical-session.target
> 2. Emacs executed in emacs.service 
> 3. Emacs launches with all it's modes loaded, desktop-mode session
> restored etc.
> 4. Emacs is ready to receive commands
> 
> When the user starts emacsclient before step 4 is reached then it can
> timeout because it can take some time till Emacs is ready.

Wouldn't this be a cockpit mistake?  The user presumably knows that
loading desktop takes some time, and should give Emacs that time
before invoking emacsclient.  No?