Under release_9.6-173-g24740a
I have file #+begin_src org ,* h1 ,** h2 #+end_src I do M-x org-promote-subtree on h2, which works as expected; then M-x undo The file becomes #+begin_src org ,* h1 ,** * h2 #+end_src and I have the message primitive-undo: Changes to be undone by function different from announced -- EOST (École et Observatoire des Sciences de la Terre) ITE (Institut Terre & Environnement) | alain.coch...@unistra.fr 5 rue René Descartes [bureau 110] | Phone: +33 (0)3 68 85 50 44 F-67084 Strasbourg Cedex, France | [ slot available for rent ]