Hello. There is a sequence of actions that triggers shutting down Emacs
server when using undelete frame and `C-x C-c' it.
1. Start with the following init.el:
(require 'server)
(unless (server-running-p) (server-start))
(undelete-frame-mode)
2. In a graphical terminal emulator, run `emacs'
3. In another window of a terminal emulator, run `emacsclient -c'
4. Ensure the second frame is selected, use `C-x C-c'
5. Undelete the frame and again use `C-x C-c' inside the undeleted frame
6. Observe that both frames are now closed
7. Running `emacsclient -c' produces "can't find socket; have you
started the server?"

As far as I saw, this is not reproducible with `emacsclient -nc' or when
a frame is deleted by `C-x 5 0'.

Thank you in advance.


In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.34, cairo version 1.17.6) of 2022-11-23 built on igorLap
Repository revision: 5e8c62ffcae473b89e268e0081d4041fb19abef7
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Arch Linux

Configured using:
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Important settings:
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  locale-coding-system: utf-8-unix

Major mode: Info

Minor modes in effect:
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