bug#47774: 28.0.50; crash when using minibuffer

[Vincenzo Pupillo]

The crash occur when switching from one buffer to others using
counsel-switch-buffer (via minibuffer). I'm wasn't doing anything special, in 
*scratch* buffer
I was trying to figure out how to properly use fontset functions.



In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.28, cairo 
version 1.16.0)
 of 2021-04-14 built on localhost.localdomain
Repository revision: 844b8949a71f180d395a237c768b22d91cf91ded
Repository branch: master
Windowing system distributor 'Fedora Project', version 11.0.12010000
System Description: Fedora 33 (KDE Plasma)

Configured using:
 'configure --with-cairo --with-x-toolkit=gtk3 --with-xwidgets
 --without-pop --without-imagemagick --prefix=/opt/emacs
 --with-file-notification=inotify --enable-link-time-optimization
 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g -mtune=native -D_FORTIFY_SOURCE=2
 -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fstack-clash-protection
 -fcf-protection''

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

Important settings:
  value of $LANG: it_IT.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  hl-line-mode: t
  yas-minor-mode: t
  pdf-occur-global-minor-mode: t
  persp-mode: t
  shell-dirtrack-mode: t
  counsel-mode: t
  ivy-mode: t
  override-global-mode: t
  global-semantic-idle-completions-mode: t
  global-semantic-idle-scheduler-mode: t
  global-semantic-idle-summary-mode: t
  which-key-mode: t
  which-function-mode: t
  show-paren-mode: t
  save-place-mode: t
  projectile-mode: t
  global-flycheck-mode: t
  flycheck-mode: t
  electric-pair-mode: t
  editorconfig-mode: t
  delete-selection-mode: t
  company-quickhelp-mode: t
  company-quickhelp-local-mode: t
  global-company-mode: t
  company-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

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/home/vincenzo/.emacs.d/elpa/org-9.4.5/ob-lob hides 
/opt/emacs/share/emacs/28.0.50/lisp/org/ob-lob
/home/vincenzo/.emacs.d/elpa/org-9.4.5/ob-dot hides 
/opt/emacs/share/emacs/28.0.50/lisp/org/ob-dot
/home/vincenzo/.emacs.d/elpa/org-9.4.5/ob-picolisp hides 
/opt/emacs/share/emacs/28.0.50/lisp/org/ob-picolisp
/home/vincenzo/.emacs.d/elpa/org-9.4.5/ob-forth hides 
/opt/emacs/share/emacs/28.0.50/lisp/org/ob-forth
/home/vincenzo/.emacs.d/elpa/org-9.4.5/org-macs hides 
/opt/emacs/share/emacs/28.0.50/lisp/org/org-macs
/home/vincenzo/.emacs.d/elpa/org-9.4.5/org-tempo hides 
/opt/emacs/share/emacs/28.0.50/lisp/org/org-tempo
/home/vincenzo/.emacs.d/elpa/seq-20151121.1017/seq hides 
/opt/emacs/share/emacs/28.0.50/lisp/emacs-lisp/seq

Features:
(shadow sort mail-extr emacsbug message rmc puny rfc822 mml mml-sec epa
derived epg epg-config gnus-util rmail rmail-loaddefs mm-decode
mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils
add-log vc-git diff-mode vc-dispatcher warnings editorconfig-core
editorconfig-core-handle editorconfig-fnmatch hl-line haskell-snippets
react-snippets yasnippet-snippets yasnippet company-yasnippet
flycheck-irony irony-diagnostics irony irony-iotask
flycheck-golangci-lint flycheck-haskell haskell-cabal haskell-utils init
custom-clojure custom-dart use-package-ensure custom-lisp custom-hk
custom-sql custom-rust custom-web custom-markdown custom-org
custom-python custom-scala custom-java android-env hydra lv custom-php
custom-go custom-c dired-launch pdf-occur tablist tablist-filter
semantic/wisent/comp semantic/wisent semantic/wisent/wisent pdf-isearch
let-alist pdf-misc pdf-loader pdf-tools cus-edit wid-edit pdf-view
bookmark jka-compr pdf-cache pdf-info tq pdf-util image-mode exif
perspective projectile-speedbar sr-speedbar speedbar dframe
counsel-etags docker-tramp tramp-cache vagrant-tramp term disp-table
ehelp tramp tramp-loaddefs trampver tramp-integration files-x
tramp-compat shell drupal/pcomplete pcomplete parse-time iso8601
time-date ls-lisp format-spec find-file smex ido counsel xdg dired
dired-loaddefs swiper ivy ivy-faces ivy-overlay colir color cl-extra
use-package-bind-key bind-key use-package-core custom-function
custom-variables semantic/idle semantic/analyze semantic/sort
semantic/scope semantic/analyze/fcn semantic/db eieio-base
semantic/format ezimage semantic/tag-ls semantic/find semantic/ctxt
semantic/util-modes semantic/util semantic pp semantic/tag semantic/lex
semantic/fw mode-local cedet company-oddmuse company-keywords
company-etags etags fileloop generator xref project company-gtags
company-dabbrev-code company-dabbrev company-files company-clang
company-capf company-cmake company-semantic company-template
company-bbdb which-key advice which-func imenu paren saveplace
projectile grep compile text-property-search ibuf-ext ibuffer
ibuffer-loaddefs thingatpt gud easy-mmode comint ring flycheck
ansi-color find-func help-mode dash elec-pair editorconfig delsel
company-quickhelp pos-tip company pcase cus-start cus-load finder-inf
edmacro kmacro rx slime-autoloads w3m-load 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 cl-loaddefs cl-lib
iso-transl tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type 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 elisp-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 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
xwidget-internal dbusbind inotify lcms2 dynamic-setting
system-font-setting font-render-setting cairo move-toolbar gtk x-toolkit
x multi-tty make-network-process emacs)

Memory information:
((conses 16 668947 151618)
 (symbols 48 32304 16)
 (strings 32 380879 48285)
 (string-bytes 1 22251738)
 (vectors 16 55613)
 (vector-slots 8 1330912 156253)
 (floats 8 239 470)
 (intervals 56 388 380)
 (buffers 992 12))