bug#61479: 28.2; icomplete-in-buffer --- Error in post-command-hook: args-out-of-range

[Fernando de Morais]

To reproduce, which is possible with 'emacs -Q', please:

1. Evaluate the following snippet:

  (progn
    (with-eval-after-load 'icomplete
      (setq icomplete-in-buffer t))
    (icomplete-mode))

2. Type the following:

  (with-)

3. Then, with the cursor positioned after the dash, C-M-i (to try
   `completion-at-point').

Results in:

  - A window with the *Completions* buffer is shown, but an error[1] is
    raised and `icomplete' does not appear in the current buffer;
  - Deleting the close parenthesis and trying `completion-at-point' once
    again brings `icomplete' to the buffer, as expected.

[1]  "Error in post-command-hook (icomplete-post-command-hook): 
(args-out-of-range #("with-" 0 5 (fontified t)) 0 6)"


In GNU Emacs 28.2 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.36, cairo 
version 1.17.6)
 of 2023-01-02 built on 2
Windowing system distributor 'The X.Org Foundation', version 11.0.12101007
System Description: Arch Linux

Configured using:
 'configure --with-x-toolkit=gtk3 --with-native-compilation
 --sysconfdir=/etc --prefix=/usr --libexecdir=/usr/lib
 --localstatedir=/var --with-cairo --with-harfbuzz --with-libsystemd
 --with-modules 'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fno-plt
 -fexceptions -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security
 -fstack-clash-protection -fcf-protection -g
 -ffile-prefix-map=/build/emacs/src=/usr/src/debug/emacs -flto=auto'
 'LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now -flto=auto''

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS
X11 XDBE XIM XPM GTK3 ZLIB

Important settings:
  value of $LC_CTYPE: pt_BR.UTF-8
  value of $LANG: pt_BR.UTF-8
  value of $XMODIFIERS: @im=fcitx
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  shell-dirtrack-mode: t
  flymake-mode: t
  flyspell-mode: t
  hl-line-mode: t
  corfu-mode: t
  rainbow-delimiters-mode: t
  recentf-mode: t
  savehist-mode: t
  goto-address-prog-mode: t
  minions-mode: t
  movemail-auto-fetch-mode: t
  marginalia-mode: t
  icomplete-vertical-mode: t
  icomplete-mode: t
  minibuffer-electric-default-mode: t
  minibuffer-depth-indicate-mode: t
  display-time-mode: t
  global-so-long-mode: t
  electric-pair-mode: t
  delete-selection-mode: t
  display-battery-mode: t
  gcmh-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  temp-buffer-resize-mode: t
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t
  indent-tabs-mode: t
  transient-mark-mode: t
  hs-minor-mode: t

Load-path shadows:
None found.

Features:
(shadow bbdb-message footnote emacsbug sendmail gnus-uu yenc tramp-cache
tramp-sh tramp tramp-loaddefs trampver tramp-integration files-x
tramp-compat ls-lisp consult-dir re-builder rng-xsd xsd-regexp rng-cmpct
rng-nxml rng-valid nxml-mode nxml-outln nxml-rap sgml-mode facemenu
yasnippet eglot external-completion array filenotify jsonrpc ert ewoc
sh-script smie executable view sxhkdrc-mode em-tramp em-rebind em-smart
em-unix em-term term ehelp em-script em-prompt em-ls em-hist em-pred
em-glob em-cmpl em-dirs esh-var em-basic em-banner em-alias esh-mode
eshell esh-cmd esh-ext esh-opt esh-proc esh-io esh-arg esh-module
esh-groups esh-util markdown-mode edit-indirect color consult-imenu
imenu misearch multi-isearch shell gnus-cite smiley mm-archive mail-extr
gnus-bcklg sort gnus-ml disp-table qp nnmaildir nnagent nnml bbdb-gnus
bbdb-mua nnnil nnrss gnus-topic mairix gnus-dup gnus-draft nndraft nnmh
gnus-demon gnus-async gnus-agent gnus-srvr gnus-score score-mode
nnvirtual gnus-msg nntp gnus-cache denote xref whitespace shortdoc
consult-org modus-operandi-theme embark-org embark-consult embark
help-fns radix-tree cl-print debug backtrace cape-keyword cape socks
elpher gemini-mode comp comp-cstr time-stamp ox-taskjuggler ox-md
ox-gemini ox-odt rng-loc rng-uri rng-parse rng-match rng-dt rng-util
rng-pttrn nxml-parse nxml-ns nxml-enc xmltok nxml-util ox-latex
ox-icalendar org-agenda org-refile ox-html table ox-ascii ox-publish ox
tab-line face-remap olivetti bbdb-csv-import bbdb-com crm dash pcsv bbdb
bbdb-site timezone diary-lib diary-loaddefs cal-move conf-mode org-eldoc
org-indent image-file image-converter gnutls network-stream url-http
url-gw nsm url-cache url-auth ol-eww eww-lnum eww xdg url-queue mm-url
ol-rmail ol-mhe ol-irc ol-info ol-gnus nnselect gnus-search eieio-opt
speedbar ezimage dframe gnus-art mm-uu mml2015 mm-view mml-smime smime
dig gnus-sum shr-tag-pre-highlight language-detection shr kinsoku svg
dom gnus-group gnus-undo gnus-start gnus-dbus gnus-cloud nnimap nnmail
mail-source utf7 netrc nnoo parse-time gnus-spec gnus-int gnus-range
message rmc puny rfc822 mml mml-sec mm-decode mm-bodies mm-encode
mailabbrev gmm-utils mailheader gnus-win gnus nnheader gnus-util rmail
rmail-loaddefs mail-utils ol-docview doc-view jka-compr image-mode exif
ol-bibtex ol-bbdb ol-w3m ol-doi org-link-doi ob-octave org-superstar
org-element avl-tree generator org-contrib org ob ob-tangle ob-ref
ob-lob ob-table ob-exp org-macro org-footnote org-src ob-comint
org-pcomplete pcmpl-args pcmpl-gnu pcmpl-linux pcmpl-unix pcomplete
org-list org-faces org-entities noutline outline org-version
ob-emacs-lisp ob-core ob-eval org-table oc-basic bibtex iso8601 ol
org-keys oc org-compat advice org-macs org-loaddefs find-func holidays
hol-loaddefs cal-menu calendar cal-loaddefs consult-icomplete consult
bookmark vc-mtn vc-hg vc-git diff-mode vc-bzr vc-src vc-sccs vc-svn
vc-cvs vc-rcs diff vc vc-dispatcher ibuffer-vc ibuf-ext ibuffer
ibuffer-loaddefs mule-util time-date checkdoc lisp-mnt mail-parse
rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr dired-x dired-aux
dired dired-loaddefs flymake-proc flymake project compile
text-property-search comint ansi-color ring warnings
display-line-numbers epa-file epa derived epg rfc6068 epg-config
cl-extra help-mode flyspell ispell hl-line hideshow corfu
rainbow-delimiters recentf tree-widget cus-start savehist server
goto-addr minions rx easy-mmode let-alist exec-path-from-shell ibuf-macs
marginalia icomplete minibuf-eldef mb-depth orderless time so-long
edmacro kmacro elec-pair delsel format-spec battery dbus xml
auth-source-pass modus-vivendi-theme modus-themes pcase ffap thingatpt
no-littering compat compat-29 gcmh system-packages tex-site info package
browse-url url url-proxy url-privacy url-expand url-methods url-history
url-cookie url-domsuf url-util mailcap url-handlers url-parse
auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs
password-cache json subr-x map url-vars seq byte-opt gv bytecomp
byte-compile cconv cus-edit pp cus-load wid-edit cl-loaddefs cl-lib
iso-transl tooltip eldoc paren electric uniquify ediff-hook vc-hooks
lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd
tool-bar dnd fontset image regexp-opt fringe tabulated-list replace
newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar
rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock
font-lock syntax font-core term/tty-colors frame minibuffer cl-generic
cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese composite emoji-zwj charscript
charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray
cl-preloaded nadvice button loaddefs faces cus-face macroexp files
window text-properties overlay sha1 md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote threads dbusbind
inotify lcms2 dynamic-setting system-font-setting font-render-setting
cairo move-toolbar gtk x-toolkit x multi-tty make-network-process
native-compile emacs)

Memory information:
((conses 16 1335704 152377)
 (symbols 48 55703 5)
 (strings 32 300173 19716)
 (string-bytes 1 11310923)
 (vectors 16 293272)
 (vector-slots 8 3428060 332065)
 (floats 8 91543 611)
 (intervals 56 30075 2894)
 (buffers 992 51))

-- 
Regards,
Fernando de Morais.