bug#63899: 29.0.91; org-evaluate-time-range does not return a value

[Adham Omran]

Steps to reproduce:-

1. Enter org-mode.
2. Run org-time-stamp twice and insert two dates.
3. Run org-evaluate-time-range

The expected result is the time difference between the two dates but
nothing occurs.

In GNU Emacs 29.0.91 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo
version 1.16.0, Xaw3d scroll bars)
Windowing system distributor 'The X.Org Foundation', version 11.0.12101008
System Description: NixOS 23.05 (Stoat)

Configured using:
 'configure
 --prefix=/nix/store/l4myah23ny55hnmgwpdqrp5h8xf47jgx-emacs-29.0.91
 --disable-build-details --with-modules --with-x-toolkit=lucid
 --with-xft --with-cairo --with-native-compilation --with-tree-sitter
 --with-xinput2'

Configured features:
CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON
LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XAW3D XDBE XIM XPM LUCID ZLIB

Important settings:
  value of $EMACSLOADPATH: 
  value of $EMACSNATIVELOADPATH: 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/native-lisp::
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Org

Minor modes in effect:
  global-git-commit-mode: t
  magit-auto-revert-mode: t
  org-auto-tangle-mode: t
  global-jinx-mode: t
  jinx-mode: t
  server-mode: t
  telega-root-auto-fill-mode: t
  telega-active-video-chats-mode: t
  telega-active-locations-mode: t
  telega-patrons-mode: t
  envrc-global-mode: t
  envrc-mode: t
  doom-modeline-mode: t
  global-hl-line-mode: t
  display-time-mode: t
  persp-mode: t
  which-key-mode: t
  global-auto-revert-mode: t
  pixel-scroll-precision-mode: t
  delete-selection-mode: t
  global-corfu-mode: t
  corfu-mode: t
  global-flycheck-mode: t
  flycheck-mode: t
  save-place-mode: t
  pdf-occur-global-minor-mode: t
  electric-pair-mode: t
  org-roam-db-autosync-mode: t
  global-ligature-mode: t
  ligature-mode: t
  marginalia-mode: t
  savehist-mode: t
  vertico-mode: t
  gcmh-mode: t
  shell-dirtrack-mode: t
  override-global-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: -1
  mouse-wheel-mode: t
  global-prettify-symbols-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  line-number-mode: t
  auto-fill-function: org-auto-fill-function
  indent-tabs-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
/etc/profiles/per-user/adham/share/emacs/site-lisp/password-store hides 
/home/adham/.emacs.d/elpa/password-store-20230503.619/password-store
/run/current-system/sw/share/emacs/site-lisp/site-start hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/site-start
/home/adham/.emacs.d/elpa/compat-29.1.4.1/compat-29 hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/elpa/compat-29.1.4.1/compat-29
/home/adham/.emacs.d/elpa/compat-29.1.4.1/compat-27 hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/elpa/compat-29.1.4.1/compat-27
/home/adham/.emacs.d/elpa/compat-29.1.4.1/compat-pkg hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/elpa/compat-29.1.4.1/compat-pkg
/home/adham/.emacs.d/elpa/compat-29.1.4.1/compat hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/elpa/compat-29.1.4.1/compat
/home/adham/.emacs.d/elpa/compat-29.1.4.1/compat-28 hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/elpa/compat-29.1.4.1/compat-28
/home/adham/.emacs.d/elpa/compat-29.1.4.1/compat-25 hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/elpa/compat-29.1.4.1/compat-25
/home/adham/.emacs.d/elpa/compat-29.1.4.1/compat-autoloads hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/elpa/compat-29.1.4.1/compat-autoloads
/home/adham/.emacs.d/elpa/compat-29.1.4.1/compat-26 hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/elpa/compat-29.1.4.1/compat-26
/home/adham/.emacs.d/elpa/compat-29.1.4.1/compat-macs hides 
/nix/store/fh28apmh77x0vdsf4fagmxzacps45296-emacs-packages-deps/share/emacs/site-lisp/elpa/compat-29.1.4.1/compat-macs
/home/adham/.emacs.d/elpa/transient-20230315.1520/transient hides 
/nix/store/l4myah23ny55hnmgwpdqrp5h8xf47jgx-emacs-29.0.91/share/emacs/29.0.91/lisp/transient

Features:
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anki-editor tabify elfeed-link sh-script treesit executable calc-ext
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which-func magit-diff smerge-mode diff git-commit log-edit pcvs-util
add-log magit-core magit-autorevert magit-margin magit-transient
magit-process magit-mode transient magit-git magit-base crm nix-mode
ffap smie nix-repl nix-shell nix-store nix-log nix-instantiate
nix-shebang nix-format nix whitespace org-timer org-duration mule-util
pdf-sync pdf-annot facemenu pdf-outline pdf-links pdf-history conf-mode
org-auto-tangle 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 ox-html table ox-ascii ox-publish ox async oc-basic ol-eww
eww mm-url ol-rmail ol-mhe ol-irc ol-info ol-gnus nnselect gnus-art
mm-uu mml2015 mm-view mml-smime smime gnutls dig gnus-sum gnus-group
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nnoo gnus-spec gnus-int gnus-range gnus-win gnus nnheader range
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pass password-store auth-source-pass with-editor server telega-obsolete
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counsel swiper ivy ivy-faces ivy-overlay colir envrc inheritenv
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doom-modeline-env doom-modeline-core shrink-path hl-line time quail
elfeed-show elfeed-search vc-git diff-mode message sendmail yank-media
rfc822 mml mml-sec gnus-util mm-decode mm-bodies mm-encode mail-parse
rfc2231 rfc2047 rfc2045 mm-util ietf-drums mail-prsvr mailabbrev
gmm-utils shr pixel-fill kinsoku svg dom elfeed-csv elfeed elfeed-curl
elfeed-log elfeed-db elfeed-lib url-queue url-file xml-query persp-mode
writeroom-mode visual-fill-column which-key vterm face-remap term
disp-table ehelp vterm-module term/xterm xterm autorevert pixel-scroll
cua-base delsel corfu quarto-mode request mailheader mail-utils
ess-view-data ess-r-mode ess-r-flymake flymake-proc flymake ess-r-xref
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poly-markdown polymode poly-lock polymode-base polymode-weave
polymode-export polymode-compat polymode-methods polymode-core
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notifications dbus xml gntp comp comp-cstr warnings org-roam-migrate
org-roam-log org-roam-mode org-roam-capture org-roam-id org-roam-node
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org-roam org-capture org-attach emacsql-sqlite emacsql-sqlite-common
emacsql emacsql-compiler magit-section f f-shortdoc org-habit org-agenda
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saveplace-pdf-view-autoloads request-autoloads
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hyperbole-autoloads which-key-autoloads citeproc-autoloads
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threads dbusbind inotify dynamic-setting system-font-setting
font-render-setting cairo x-toolkit x multi-tty make-network-process
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Memory information:
((conses 16 1681550 425564)
 (symbols 48 77930 23)
 (strings 32 395274 146761)
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 (vectors 16 226073)
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 (buffers 984 87))