Hi all,
I tried to use `org-agenda-set-tags'. The source buffer, where the change should be applied is visible at the same time as the agenda is. Also, fast tag selection with a single key is enabled. Under these circumstances, the tag text is appended to the line (not even necessarily a heading!) where point is in the source buffer visible parallel to the agenda, instead of the correct heading that I acted upon. I tracked this done to a missing `save-excursion' wrapped around the `save-window-excursion' in `org-fast-tag-selection' (org.el line 14567 in my version). This would be analogous to what is done in `org-fast-todo-selection' and fixes my issue. Thanks! Emacs : GNU Emacs 27.0.50 (build 24, x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2019-02-16 Package: Org mode version 9.2.3 (9.2.3-9-g0803e2-elpa @ /home/il/.emacs.d/elpa/org-20190422/) current state: ============== (setq org-fast-tag-selection-single-key t org-tag-persistent-alist '(("REFILE" . 82) ("SELECT" . 115)) org-src-window-setup 'other-window)