The following sequence of commands:
make vanilla
M-x org-mode RET
M-x erase-buffer RET SPC
M-: (setq org-adapt-indentation 'headline-data)
M-x org-indent-line RET
results in:
Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
org-indent-line()
funcall-interactively(org-indent-line)
command-execute(org-indent-line record)
execute-extended-command(nil "org-indent-line" "org-indent-li")
funcall-interactively(execute-extended-command nil "org-indent-line"
"org-indent-li")
command-execute(execute-extended-command)
`org-indent-line' probably should test ELEMENT on nil-ness, but I'm not
sure where exactly.
Emacs : GNU Emacs 28.2 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.38,
cairo version 1.16.0)
of 2024-06-25, modified by Debian
Package: Org mode version 9.8-pre (release_9.7.6-107-gf21415 @
/home/jschmidt/work/org-mode/lisp/)