Bug: Duplicate logbook entry for repeated tasks [9.4.6 (9.4.6-gab9f2a @ /home/gustavo/.emacs.d/elpa/org-9.4.6/)]

[Gustavo Barros]

Hi All,

The marking of repeated tasks as "done" is currently resulting in 
duplicate entries in the "LOGBOOK" drawer, which is not expected.  I 
don't know exactly when this came to be, but it does not happen in the 
current built-in version (9.4.4), while it does in the latest release 
(9.4.6).

An ECM to reproduce the issue is the following.

Start 'emacs -Q' and do an initial setup:

#+begin_src emacs-lisp
(add-to-list 'load-path "~/.emacs.d/elpa/org-9.4.6")
(setq org-log-into-drawer t)
(setq org-log-done 'time)
(setq org-todo-keywords
     '((sequence "TODO(t)" "SOMEDAY(s)" "|" "DONE(d!)")
       (sequence "NEXT(n)" "WAIT(w@/!)" "|" "CANCELED(c@/!)")))
#+end_src

Visit file =test.org= with contents:
#+begin_src org
,* TODO Foo
SCHEDULED: <2021-06-13 Sun +1d>
#+end_src

Now call "C-c C-t" (`org-todo'), and call the key "d" for "DONE", as per 
the above settings.  The resulting buffer is:

#+begin_src org
,* TODO Foo
SCHEDULED: <2021-06-15 Tue +1d>
:PROPERTIES:
:LAST_REPEAT: [2021-06-14 Mon 10:27]
:END:
:LOGBOOK:
- State "DONE"       from "TODO"       [2021-06-14 Mon 10:27]
- State "DONE"       from "TODO"       [2021-06-14 Mon 10:27]
:END:
#+end_src


Best regards,
Gustavo.



Emacs  : GNU Emacs 27.2 (build 1, x86_64-pc-linux-gnu, GTK+ Version 
3.24.20, cairo version 1.16.0)
of 2021-03-25
Package: Org mode version 9.4.6 (9.4.6-gab9f2a @ 
/home/gustavo/.emacs.d/elpa/org-9.4.6/)

current state:
==============
(setq
org-src-mode-hook '(org-src-babel-configure-edit-buffer
                     org-src-mode-configure-edit-buffer)
org-link-shell-confirm-function 'yes-or-no-p
org-metadown-hook '(org-babel-pop-to-session-maybe)
org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
org-mode-hook '(#[0 "\300\301\302\303\304$\207"
		   [add-hook change-major-mode-hook org-show-all append 
		   local]
                   5]
                 #[0 "\300\301\302\303\304$\207"
		   [add-hook change-major-mode-hook 
		   org-babel-show-result-all
                    append local]
                   5]
                 org-babel-result-hide-spec org-babel-hide-all-hashes)
org-archive-hook '(org-attach-archive-delete-maybe)
org-confirm-elisp-link-function 'yes-or-no-p
org-agenda-before-write-hook '(org-agenda-add-entry-text)
org-metaup-hook '(org-babel-load-in-session-maybe)
org-bibtex-headline-format-function #[257 "\300\236A\207" [:title] 3 
"\n\n(fn ENTRY)"]
org-babel-pre-tangle-hook '(save-buffer)
org-tab-first-hook '(org-babel-hide-result-toggle-maybe
                      org-babel-header-arg-expand)
org-log-done 'time
org-agenda-loop-over-headlines-in-active-region nil
org-occur-hook '(org-first-headline-recenter)
org-log-into-drawer t
org-cycle-hook '(org-cycle-hide-archived-subtrees 
org-cycle-hide-drawers
                  org-cycle-show-empty-lines
                  org-optimize-window-after-visibility-change)
org-todo-keywords '((sequence "TODO(t)" "SOMEDAY(s)" "|" "DONE(d!)")
		     (sequence "NEXT(n)" "WAIT(w@/!)" "|" 
		     "CANCELED(c@/!)"))
org-speed-command-hook '(org-speed-command-activate
                          org-babel-speed-command-activate)
org-export-before-parsing-hook '(org-attach-expand-links)
org-confirm-shell-link-function 'yes-or-no-p
org-link-parameters '(("attachment" :follow org-attach-follow :complete
                        org-attach-complete-link)
                       ("id" :follow org-id-open)
		       ("eww" :follow org-eww-open :store 
		       org-eww-store-link)
                       ("rmail" :follow org-rmail-open :store
                        org-rmail-store-link)
		       ("mhe" :follow org-mhe-open :store 
		       org-mhe-store-link)
		       ("irc" :follow org-irc-visit :store 
		       org-irc-store-link
                        :export org-irc-export)
		       ("info" :follow org-info-open :export 
		       org-info-export
                        :store org-info-store-link)
                       ("gnus" :follow org-gnus-open :store
                        org-gnus-store-link)
                       ("docview" :follow org-docview-open :export
			org-docview-export :store 
			org-docview-store-link)
                       ("bibtex" :follow org-bibtex-open :store
                        org-bibtex-store-link)
		       ("bbdb" :follow org-bbdb-open :export 
		       org-bbdb-export
                        :complete org-bbdb-complete-link :store
                        org-bbdb-store-link)
                       ("w3m" :store org-w3m-store-link) ("file+sys")
		       ("file+emacs") ("shell" :follow 
		       org-link--open-shell)
                       ("news" :follow
                        #[514 "\301\300\302Q\"\207"
                          ["news" browse-url ":"] 6 "\n\n(fn URL ARG)"]
                        )
                       ("mailto" :follow
                        #[514 "\301\300\302Q\"\207"
			  ["mailto" browse-url ":"] 6 "\n\n(fn URL 
			  ARG)"]
                        )
                       ("https" :follow
                        #[514 "\301\300\302Q\"\207"
                          ["https" browse-url ":"] 6 "\n\n(fn URL ARG)"]
                        )
                       ("http" :follow
                        #[514 "\301\300\302Q\"\207"
                          ["http" browse-url ":"] 6 "\n\n(fn URL ARG)"]
                        )
                       ("ftp" :follow
			#[514 "\301\300\302Q\"\207" ["ftp" browse-url 
                        ":"]
                          6 "\n\n(fn URL ARG)"]
                        )
                       ("help" :follow org-link--open-help)
                       ("file" :complete org-link-complete-file)
                       ("elisp" :follow org-link--open-elisp)
                       ("doi" :follow org-link--open-doi))
org-link-elisp-confirm-function 'yes-or-no-p
)