Using a similar example, another indentation bug has been revealed: 1. emacs -Q 2. Create an Org file with the following contents:
- 1 - 2 - 3 - 4 - 5 #+begin_src yaml a: b: c: d: #+end_src Everything indented using spaces, including "d:" that uses 8 spaces, which should remain spaces since yaml-mode uses spaces for indentation. 3. M-x whitespace-mode 4. Move point to item 5 and press M-<right> 3 times 5. Observe "d:" indented using two tabs with all the spaces replaced by tabs. The cause is the following line in `org-list-struct-apply-struct' [[file:~/Git/org-mode/lisp/org-list.el::indent-line-to (+ (org-current-text-indentation) delta)))]] It calls `indent-line-to' that replaces spaces with tabs according to current value of indent-tabs-mode in Org buffer. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at <https://orgmode.org/>. Support Org development at <https://liberapay.com/org-mode>, or support my work at <https://liberapay.com/yantar92>