I am learning org-mode by trying the several features one by one.
In the agenda list `org-agenda-list` buffer, when I do `org-agenda-filter-by-top-headline` when the point is over a line with a headline, nothing is filtered.
I use the minimal setup as described with the most recent org version as specified here:
Here is the content of the files in org-agenda-files:
f1.org```
* Root
** TODO task 1 :tag_1:
DEADLINE: <2018-09-14 Fri 12:00:00>
:PROPERTIES:
:ADD_TIME: <2018-09-07 Fri 23:47:00>
:END:
*** TODO task 1.1
DEADLINE: <2018-09-14 Fri 11:00:00>
:PROPERTIES:
:ADD_TIME: <2018-09-07 Fri 23:47:00>
:END:
*** DONE task 1.2
CLOSED: [2018-09-09 Sun 23:53:00] DEADLINE: <2018-09-14 Fri 11:00:00>
:PROPERTIES:
:ADD_TIME: <2018-09-07 Fri 23:47:00>
:END:
```
f2.org```
* Root
** TODO task 2 :tag_2:
DEADLINE: <2018-09-14 Fri 12:00:00>
:PROPERTIES:
:ADD_TIME: <2018-09-07 Fri 23:47:00>
:END:
*** TODO task 2.1
DEADLINE: <2018-09-14 Fri 11:00:00>
:PROPERTIES:
:ADD_TIME: <2018-09-07 Fri 23:47:00>
:END:
*** DONE task 2.2
CLOSED: [2018-09-09 Sun 23:53:00] DEADLINE: <2018-09-14 Fri 11:00:00>
:PROPERTIES:
:ADD_TIME: <2018-09-07 Fri 23:47:00>
:END:
** DONE task 3 [100%] :tag_3:
CLOSED: [2018-09-10 Mon 23:57:22] DEADLINE: <2018-09-14 Fri 12:00:00>
:PROPERTIES:
:ADD_TIME: <2018-09-06 Thu 23:47:00>
:END:
*** DONE task 3.1
CLOSED: [2018-09-10 Mon 23:57:20] DEADLINE: <2018-09-14 Fri 11:00:00>
:PROPERTIES:
:ADD_TIME: <2018-09-06 Thu 23:47:00>
:END:
*** DONE task 3.2
CLOSED: [2018-09-09 Sun 23:53:00] DEADLINE: <2018-09-14 Fri 11:00:00>
:PROPERTIES:
:ADD_TIME: <2018-09-06 Thu 23:47:00>
:END:
** TODO task 4
DEADLINE: <2018-09-13 Thu 12:00:00> SCHEDULED: <2018-09-14 Fri 23:55:00>
** TODO task 5
DEADLINE: <2018-09-11 Tue 12:00:00> SCHEDULED: <2018-09-06 Thu 10:00:00>
** TODO task 6
DEADLINE: <2018-09-13 Thu 12:00:00> SCHEDULED: <2018-09-09 Sun 10:00:00>
** TODO task 7
DEADLINE: <2018-09-14 Fri 12:00:00> SCHEDULED: <2018-09-12 Wed 10:00:00>
```
Am I not using `org-agenda-filter-by-top-headline` correctly?
What should I do to filter the agenda list by top headline?
Regards.
===================================
Emacs : GNU Emacs 26.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
of 2018-07-05
Package: Org mode version 9.1.14 (release_9.1.14-908-gf1269e)
current state:
==============
(setq
org-src-mode-hook '(org-src-babel-configure-edit-buffer
org-src-mode-configure-edit-buffer)
org-after-todo-state-change-hook '(org-clock-out-if-current)
org-metadown-hook '(org-babel-pop-to-session-maybe)
org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
org-agenda-files '("~/tmp/orgmode/agenda/
f2.org" "~/tmp/orgmode/agenda/
f1.org")
org-mode-hook '((closure
(org--rds reftex-docstruct-symbol orgtbl-line-start-regexp
org-element-greater-elements org-table-coordinate-overlays
org-table-auto-blank-field org-clock-history org-agenda-current-date
org-with-time org-defdecode org-def org-read-date-inactive org-ans2
org-ans1 org-columns-current-fmt-compiled org-clock-current-task
org-clock-effort org-agenda-skip-function
org-agenda-skip-comment-trees org-agenda-archives-mode
org-end-time-was-given org-time-was-given org-log-note-extra
org-log-note-purpose org-log-post-message org-last-inserted-timestamp
org-last-changed-timestamp org-entry-property-inherited-from
org-blocked-by-checkboxes org-state
org-agenda-headline-snapshot-before-repeat
org-capture-last-stored-marker org-agenda-start-on-weekday
org-agenda-buffer-tmp-name clean-buffer-list-kill-buffer-names
org-id-link-to-org-use-id org-agenda-buffer-name org-priority-regexp
org-mode-abbrev-table org-mode-syntax-table buffer-face-mode-face
org-mode-map org-tbl-menu org-org-menu org-struct-menu org-entities
org-last-state org-id-track-globally org-clock-start-time texmathp-why
remember-data-file org-agenda-tags-todo-honor-ignore-options
iswitchb-temp-buflist calc-embedded-open-mode
calc-embedded-open-formula calc-embedded-close-formula
align-mode-rules-list org-emphasis-alist
org-emphasis-regexp-components org-export-registered-backends
org-modules org-babel-load-languages org-indent-indentation-per-level
org-element-paragraph-separate ffap-url-regexp
org-inlinetask-min-level t)
nil
(add-hook (quote change-major-mode-hook) (quote org-show-all)
(quote append) (quote local))
)
(closure
(org-bracket-link-regexp org-src-window-setup *this*
org-babel-confirm-evaluate-answer-no org-src-preserve-indentation
org-src-lang-modes org-link-file-path-type
org-edit-src-content-indentation org-babel-library-of-babel t)
nil
(add-hook (quote change-major-mode-hook)
(quote org-babel-show-result-all) (quote append) (quote local))
)
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 '(closure
(org-id-locations
org-agenda-search-view-always-boolean
org-agenda-overriding-header t)
(entry) (cdr (assq :title entry)))
org-babel-pre-tangle-hook '(save-buffer)
org-tab-first-hook '(org-babel-hide-result-toggle-maybe org-babel-header-arg-expand)
org-occur-hook '(org-first-headline-recenter)
org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-show-empty-lines
org-optimize-window-after-visibility-change)
org-speed-command-hook '(org-speed-command-activate org-babel-speed-command-activate)
org-confirm-shell-link-function 'yes-or-no-p
org-link-parameters '(("id" :follow org-id-open)
("eww" :follow eww :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")
("doi" :follow org--open-doi-link)
("elisp" :follow org--open-elisp-link)
("file" :complete org-file-complete-link)
("ftp" :follow (lambda (path) (browse-url (concat "ftp:" path))))
("help" :follow org--open-help-link)
("http" :follow (lambda (path) (browse-url (concat "http:" path))))
("https" :follow
(lambda (path) (browse-url (concat "https:" path))))
("mailto" :follow
(lambda (path) (browse-url (concat "mailto:" path))))
("news" :follow (lambda (path) (browse-url (concat "news:" path))))
("shell" :follow org--open-shell-link))
)