[O] Bug: org-refile, org-archive-subtree and footnotes [8.3.6 (8.3.6-4-g4835be-elpaplus @ /home/jorge/.emacs.d/elpa/org-plus-contrib-20160926/)]

[Jorge]

Start Emacs with an empty init file and make the following customizations:

- org-log-refile :: 'time
- org-refile-targets :: (("/tmp/b.org" :maxlevel . 1))
- org-refile-use-outline-path :: 'file

Create an Org buffer named a.org with the following content:
--8<---------------cut here---------------start------------->8---
* My pets
** Rex
   Given to me by Theresa.[fn:1]
* Footnotes

[fn:1] A work colleague.
--8<---------------cut here---------------end--------------->8---

Create an Org file named /tmp/b.org with the following content:
--8<---------------cut here---------------start------------->8---
* Her pets
--8<---------------cut here---------------end--------------->8---

In buffer a.org, with point in Rex, type:
C-c C-w b.org/Her pets/ <RET>
M-x org-lint

org-lint complains:
     4 high  No reference for footnote definition [fn:1]

A similar problem occurs if the entry is archived with org-archive-subtree.  I
expected Org to automatically detect the footnote inconsistency, without me
manually invoking org-lint.  Even better would be to fix it, e.g. offer to move
the footnote definition if there are no other references in the current buffer.

Now move to the Footnotes section and refile it to b.org (top level).
Then on b.org invoke M-x org-lint.  It complains:
     5 high  Extraneous elements in footnote section
I expected either org-refile to omit the timestamp when refiling the footnotes
section (to placate org-lint) or org-lint not to complain about the timestamp.

Thank you.  Regards.

Emacs  : GNU Emacs 25.1.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.9)
 of 2016-09-18
Package: Org-mode version 8.3.6 (8.3.6-4-g4835be-elpaplus @
/home/jorge/.emacs.d/elpa/org-plus-contrib-20160926/)

current state:
==============
(setq
 org-tab-first-hook '(org-hide-block-toggle-maybe
     org-babel-hide-result-toggle-maybe
     org-babel-header-arg-expand)
 org-speed-command-hook '(org-speed-command-default-hook
 org-babel-speed-command-hook)
 org-occur-hook '(org-first-headline-recenter)
 org-metaup-hook '(org-babel-load-in-session-maybe)
 org-html-format-drawer-function '(lambda (name contents)
  contents)
 org-latex-format-inlinetask-function
'org-latex-format-inlinetask-default-function
 org-confirm-shell-link-function 'yes-or-no-p
 org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default
 org-latex-format-headline-function 'org-latex-format-headline-default-function
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 org-latex-format-drawer-function '(lambda (name contents)
   contents)
 org-src-mode-hook '(org-src-babel-configure-edit-buffer
    org-src-mode-configure-edit-buffer)
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-babel-pre-tangle-hook '(save-buffer)
 org-mode-hook '(#[nil "\300\301\302\303\304$\207"
  [org-add-hook change-major-mode-hook
   org-show-block-all append local]
  5]
#[nil "\300\301\302\303\304$\207"
  [org-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-eldoc-load)
 org-refile-targets '(("/tmp/b.org" :maxlevel . 1))
 org-archive-hook '(org-attach-archive-delete-maybe)
 org-ascii-format-drawer-function '(lambda
   (name contents width)
   contents)
 org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point
 org-babel-execute-safely-maybe)
 org-refile-use-outline-path 'file
 org-cycle-hook '(org-cycle-hide-archived-subtrees
 org-cycle-hide-drawers
 org-cycle-show-empty-lines
 org-optimize-window-after-visibility-change)
 org-log-refile 'time
 org-confirm-elisp-link-function 'yes-or-no-p
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-html-format-headline-function 'org-html-format-headline-default-function
 org-html-format-inlinetask-function
'org-html-format-inlinetask-default-function
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 )

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