Dear Emacs maintainers, Starting with emacs -Q Paste the following lines two lines in the buffer, sage: V = VectorSpace(RationalField(), 3) # optional - sage.modules sage: v = V.gen(1) # optional - sage.modules Now shrink the window so that these lines cannot fit on one screen line. When this happens Emacs wraps lines strangely. It doesn't break the contiguous stretch of whitespace instead it breaks the word preceding it. I have attached a screenshot of what I see with this email. In GNU Emacs 29.1 (build 1, x86_64-suse-linux-gnu, GTK+ Version 3.24.38, cairo version 1.18.0) of 2023-10-08 built on i02-ch2a System Description: openSUSE Tumbleweed Configured using: 'configure --host=x86_64-suse-linux-gnu --build=x86_64-suse-linux-gnu --program-prefix= --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-pgtk --with-native-compilation=aot --with-cairo --with-libotf --with-jpeg --with-tiff --with-gif --with-png --with-rsvg --with-xft --with-xml2 --with-dbus --with-sound --with-json --with-mailutils --with-gnutls --with-tree-sitter --enable-locallisppath=/usr/share/emacs/29.1/site-lisp:/usr/share/emacs/site-lisp 'CFLAGS=-O2 -Wall -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type -flto=auto' LDFLAGS=-Wl,-O2' Configured features: CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PGTK PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER XIM GTK3 ZLIB Important settings: value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix Major mode: mu4e:main Minor modes in effect: pdf-occur-global-minor-mode: t global-evil-surround-mode: t evil-surround-mode: t eros-mode: t recentf-mode: t save-place-mode: t global-so-long-mode: t which-key-mode: t savehist-mode: t better-jumper-mode: t better-jumper-local-mode: t global-company-mode: t company-mode: t vertico-mode: t nerd-icons-completion-mode: t marginalia-mode: t evil-goggles-mode: t evil-escape-mode: t evil-snipe-override-mode: t evil-snipe-mode: t gcmh-mode: t winner-mode: t smartparens-global-mode: t 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/usr/share/emacs/site-lisp/mu4e/mu4e-draft /home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-contrib hides /usr/share/emacs/site-lisp/mu4e/mu4e-contrib /home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-context hides /usr/share/emacs/site-lisp/mu4e/mu4e-context /home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-compose hides /usr/share/emacs/site-lisp/mu4e/mu4e-compose /home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-bookmarks hides /usr/share/emacs/site-lisp/mu4e/mu4e-bookmarks /home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-actions hides /usr/share/emacs/site-lisp/mu4e/mu4e-actions Features: (shadow emacsbug vertico-directory time inspirehep-pdf companion-mode inspirehep url-queue evil-collection-reftex reftex-toc reftex-cite reftex-ref reftex-parse reftex reftex-loaddefs reftex-vars pdf-annot facemenu pdf-outline pdf-links pdf-roll pdf-loader pdf-occur evil-collection-tablist tablist tablist-filter semantic/wisent/comp semantic/wisent semantic/wisent/wisent semantic/util-modes semantic/util semantic semantic/tag semantic/lex semantic/fw mode-local cedet pdf-isearch pdf-misc evil-collection-pdf pdf-history pdf-tools evil-collection-package-menu doom-packages package url-handlers pdf-view pdf-cache pdf-info tq pdf-util pdf-macs image-mode exif char-fold guess-language flyspell link-hint ffap goto-addr avy company-ispell company-yasnippet company-dabbrev delsel adaptive-wrap jit-spell ispell face-remap evil-collection-proced proced gnus-icalendar org-capture icalendar diary-lib diary-loaddefs smerge-mode diff gnus-async gnus-bcklg gnus-ml evil-collection-indent use-package-lint consult-imenu evil-collection-consult consult evil-collection-vc-git vc-git evil-collection-diff-mode diff-mode vc-dispatcher files-x evil-collection-xref xref find-dired jka-compr auto-minor-mode disp-table whitespace bicycle hideshow evil-embrace evil-surround embrace expand-region text-mode-expansions the-org-mode-expansions org-element org-persist xdg org-id org-refile avl-tree generator er-basic-expansions expand-region-core expand-region-custom eros highlight-quoted rainbow-delimiters highlight-numbers parent-mode display-line-numbers hl-todo evil-collection-elisp-mode elisp-mode recentf tree-widget saveplace evil-collection-so-long so-long evil-collection-helpful helpful cc-langs cc-vars cc-defs evil-collection-imenu imenu trace evil-collection-edebug edebug evil-collection-debug debug backtrace info-look evil-collection-info info f f-shortdoc help-fns radix-tree evil-collection-elisp-refs elisp-refs s sort gnus-cite smiley shr-color mm-archive mail-extr textsec uni-scripts idna-mapping ucs-normalize uni-confusable textsec-check qp nndraft nnmh nnfolder cursor-sensor vertico-repeat epa-file network-stream nsm gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg nntp gnus-cache hide-mode-line evil-collection-help descr-text evil-collection-which-key which-key savehist better-jumper company-capf company evil-collection-vertico vertico orderless nerd-icons-completion marginalia compat evil-goggles pulse color evil-easymotion evil-escape evil-snipe autorevert filenotify gcmh winner smartparens-config smartparens-text smartparens loadhist dash ws-butler undo-fu-session undo-fu satchel ibuf-ext evil-collection-ibuffer ibuffer ibuffer-loaddefs desktop frameset evil-collection-mu4e mu4e mu4e-org evil-collection-org smartparens-org org ob ob-tangle ob-ref ob-lob ob-table ob-exp org-macro org-src ob-comint org-pcomplete pcomplete org-list org-footnote org-faces org-entities noutline outline ob-emacs-lisp ob-core ob-eval org-cycle org-table ol org-fold org-fold-core org-keys oc-natbib oc-csl bibtex oc-biblatex oc org-loaddefs find-func org-version org-compat org-macs mu4e-notification notifications mu4e-main mu4e-view gnus-art mm-uu mml2015 mm-view mml-smime smime gnutls dig gnus-sum gnus-group gnus-undo gnus-start gnus-dbus dbus gnus-cloud nnimap nnmail mail-source utf7 nnoo parse-time iso8601 gnus-spec gnus-int gnus-range gnus-win evil-collection-gnus gnus nnheader range evil-collection-calendar cal-menu calendar cal-loaddefs mu4e-headers mu4e-compose mu4e-draft mu4e-actions smtpmail mu4e-search mu4e-lists mu4e-bookmarks mu4e-mark mu4e-message shr pixel-fill kinsoku url-file svg xml dom browse-url url url-proxy url-privacy url-expand url-methods url-history url-cookie generate-lisp-file url-domsuf url-util url-parse auth-source json map url-vars flow-fill mule-util hl-line mu4e-contacts mu4e-update mu4e-folders mu4e-context mu4e-query-items mu4e-server mu4e-modeline mu4e-vars mu4e-helpers mu4e-config mu4e-window evil-collection-bookmark bookmark ido message sendmail mailcap yank-media puny dirvish transient format-spec eieio eieio-core evil-collection-dired dired dired-loaddefs rfc822 mml mml-sec password-cache evil-collection-epa epa epg rfc6068 epg-config gnus-util time-date mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr mailabbrev mail-utils gmm-utils mailheader mu4e-obsolete server dtrt-indent ef-spring-theme ef-themes pixel-scroll cua-base repeat midnight html2text let-alist evil-collection-flymake flymake-proc flymake project evil-collection-compile evil-collection-custom cus-edit cus-load wid-edit evil-collection-comint evil-collection annalist compile text-property-search comint ansi-osc ansi-color ibuf-macs evil evil-integration evil-maps evil-commands reveal evil-jumps evil-command-window evil-types evil-search evil-macros evil-repeat evil-states evil-core byte-opt advice evil-common thingatpt rect evil-vars ring nerd-icons nerd-icons-faces nerd-icons-data nerd-icons-data-mdicon nerd-icons-data-flicon nerd-icons-data-codicon nerd-icons-data-devicon nerd-icons-data-sucicon nerd-icons-data-wicon nerd-icons-data-faicon nerd-icons-data-powerline nerd-icons-data-octicon nerd-icons-data-pomicon nerd-icons-data-ipsicon ligature derived edmacro kmacro use-package-bind-key bind-key comp comp-cstr warnings icons rx doom-editor doom-projects doom-ui easy-mmode doom-keybinds pp cl-extra help-mode use-package-core bytecomp byte-compile general tex-site doom-start doom-modules cl-seq doom doom-lib cl-macs cl-loaddefs cl-lib pcase gv harfbuzz jansson dynamic-modules subr-x rmc iso-transl tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/pgtk-win pgtk-win term/common-win pgtk-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 nadvice seq simple cl-generic indonesian philippine 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 abbrev obarray oclosure cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget keymap hashtable-print-readable backquote threads dbusbind inotify dynamic-setting system-font-setting font-render-setting cairo gtk pgtk multi-tty make-network-process native-compile emacs) Memory information: ((conses 16 1280299 237499) (symbols 48 64315 34) (strings 32 299165 19236) (string-bytes 1 9136615) (vectors 16 143311) (vector-slots 8 3509645 300487) (floats 8 1423 1557) (intervals 56 84433 1631) (buffers 984 35))