Can't edit github input field with external editor

[chep]

Describe the bug
I'm using emacs client as external editor. When trying to edit an input on github.com, emacs client is started, I can edit and save the temp file but then the input is not updated and the temp file is deleted (so edited text is lost).
edit-with-external-editor works on other websites.

Precise recipe to reproduce the issue
Go to any github project, try creating an issue for example, give focus to the description input, call edit-with-external-editor, modify the text, save, quit (C-x # for emacs client).

For website-specific issues:
Can you reproduce this issue with Epiphany / GNOME Web (https://wiki.gnome.org/Apps/Web)?

It works with firefox and ghost text.

Information

• OS name+version: up to date archlinux
• Graphics card and driver: GeForce GTX 1060 with xf86-video-nouveau 1.0.18-1
• Desktop environment / Window manager name+version: sway version 1.10.1
• Installation method (Flatpak, Guix, package manager, build from source): pacman package manager
• Output of nyxt --system-information:

Nyxt version: 3.12.0
Renderer: GI-GTK
Operating system kernel: Linux 6.13.2-arch1-1
Lisp implementation: SBCL 2.4.9 (Dynamic space size: 3221225472)
Features: (:NYXT-GI-GTK :NYXT-GTK :NYXT-GI-GTK :NYXT-GTK :NYXT-3.12 :NYXT-3 :NYXT-3.12.0
 :CLIPBOARD-CONTENT-METHOD :SWANK :SLYNK :PLUMP-UTF-32 :PARENSCRIPT :NSYMBOLS
 :FSET-EXT-STRINGS :SBCL+SAFE-STANDARD-READTABLE :NAMED-READTABLES :GLOBAL-VARS
 :CL-FAD :LPARALLEL :21BIT-CHARS :CUSTOM-HASH-TABLE-NATIVE :CL-PPCRE-UNICODE
 :CL-UNICODE :CL-JSON-DOUBLE-FLOAT-IS-SUBSUMED
 :CL-JSON-SINGLE-FLOAT-IS-SUBSUMED :CHUNGA :FLEXI-STREAMS :CL-PPCRE :WEBKIT2
 :WEBKIT-2.46.2 :WEBKIT-2.46 :WEBKIT-2 :WEBKIT2-CORS-ALLOWLIST
 :WEBKIT2-PASTE-PLAINTEXT :WEBKIT2-TRACKING :WEBKIT2-MUTE :WEBKIT2-EMOJI
 :WEBKIT2-MEDIA :WEBKIT2-SANDBOXING :GTK-3-22 :GTK-3-20 :GTK-3-18 :GTK-3-16
 :GTK-3-14 :GTK-3-12 :GTK-3-10 :GTK-3-8 :GTK-3-6 :GTK-3-4 :GTK :GDK-3-22
 :GDK-3-20 :GDK-3-18 :GDK-3-16 :GDK-3-14 :GDK-3-12 :GDK-3-10 :GDK-3-8 :GDK-3-6
 :GDK-3-4 :CAIRO-1-10 :CAIRO-1-12 :GDK-PIXBUF :CLOSER-MOP :GLIB-2-30 :GLIB-2-32
 :GLIB-2-34 :GLIB-2-36 :GLIB-2-38 :GLIB-2-40 :GLIB-2-42 :GLIB-2-44 :GLIB-2-46
 :GLIB-2-48 :GLIB-2-50 :GLIB-2-52 :GLIB-2-54 :GLIB-2-56 :GLIB-2-58 :GLIB
 :BORDEAUX-THREADS :LPARALLEL.WITH-CLTL2 :LPARALLEL.WITH-CAS
 :LPARALLEL.WITH-STEALING-SCHEDULER :SPLIT-SEQUENCE
 CFFI-FEATURES:FLAT-NAMESPACE CFFI-FEATURES:X86-64 CFFI-FEATURES:UNIX :CFFI
 CFFI-SYS::FLAT-NAMESPACE ALEXANDRIA::SEQUENCE-EMPTYP :FAST-IO-SV :FAST-IO
 :CL-JSON-CLOS :CL-JSON :SBCL-USES-SB-ROTATE-BYTE CHIPZ-SYSTEM:GRAY-STREAMS
 :THREAD-SUPPORT :ASDF3.3 :ASDF3.2 :ASDF3.1 :ASDF3 :ASDF2 :ASDF :OS-UNIX
 :NON-BASE-CHARS-EXIST-P :ASDF-UNICODE :ARENA-ALLOCATOR :X86-64 :GENCGC :64-BIT
 :ANSI-CL :COMMON-LISP :ELF :IEEE-FLOATING-POINT :LINUX :LITTLE-ENDIAN
 :PACKAGE-LOCAL-NICKNAMES :SB-CORE-COMPRESSION :SB-LDB :SB-PACKAGE-LOCKS
 :SB-THREAD :SB-UNICODE :SBCL :UNIX)

ASDF version: 3.3.1
ASDF registries: (NYXT-SOURCE-REGISTRY ENVIRONMENT-SOURCE-REGISTRY)
Critical dependencies: (/build/nyxt/src/_build/cl-cffi-gtk/gtk/cl-cffi-gtk.asd
 /build/nyxt/src/_build/cl-gobject-introspection/cl-gobject-introspection.asd
 /build/nyxt/src/_build/cl-webkit/webkit2/cl-webkit2.asd)

[aadcg]

Since it can't be reproduced for all input elements and URLs, it is probably related to the JS logic.

I'm sure lurkers are able to debug and fix it. There's a hint in the sources.

;; BUG: Fails when the input field loses its focus, e.g the DuckDuckGo search
;; bar.  A possible solution is to keep track of the last focused element for
;; each buffer.
(define-parenscript select-input-field ()
  (let ((active-element (nyxt/ps:active-element document)))
    (when (nyxt/ps:element-editable-p active-element)
      (ps:chain active-element (select)))))