[O] Bug: org-files-list duplicate files [9.1.3 (9.1.3-29-g037db0-elpa @ ~/.emacs.d/elpa/org-20171204/)]

[Renato Ferreira]

Hello,

Investigating an issue I was having with (org-resolve-clocks) that i would
need to resolve the same clock twice, i believe i stumbled upon the
following bug on (org-files-list) (used by (org-resolve-clocks)):

It gets a list from (org-agenda-files) and pushes the open org
buffers found through (buffer-list), but i believe it _incorrectly_ uses
(cl-pushnew) since it ultimately uses memql (which compares with eql) to
check existence of the buffer file name (a string) with the
(org-agenda-files) list (of strings), returning duplicate items on lists
since compared strings are not the same lisp objects.

Advising (org-files-list) with (delete-dups) is a workaround i'm using but
(org-files-list) needs to be changed to use member instead of memql.

Thank you very much.

Emacs  : GNU Emacs 25.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.19)
 of 2017-09-16
Package: Org mode version 9.1.3 (9.1.3-29-g037db0-elpa @ 
~/.emacs.d/elpa/org-20171204/)

-- 
Att.,
Renato Ferreira