[O] Problem with completion and case in tag search

[Alain . Cochard]

Hello.

I run 

   emacs -Q -l ~/tmp/scr.emacs 

The file ~/tmp/scr.emacs contains

   (add-to-list 'load-path "~/.emacs.d/elpa/org-20180521/")
   (setq org-agenda-files '("~/tmp/bug-agenda.org"))
   (global-set-key "\C-ca" 'org-agenda)
   (find-file "~/tmp/bug-agenda2.org") ;; <- empty file

The file ~/tmp/bug-agenda.org contains

   * foo :bar:baR:Bar:BAR:

When in the empty document ~/tmp/bug-agenda2.org,

if I type

   C-a m <TAB>

it gives "BAR" in the minibuffer.

If I type

   C-a m B<TAB>

it also gives "BAR".

If I type

   C-a m b<TAB>

it gives "baR".

Is it normal?  Am I doing something wrong?  Thank you.  Regards.


Emacs : GNU Emacs 24.5.1 (x86_64-redhat-linux-gnu, GTK+ Version
3.18.9) of 2016-04-11 on buildvm-25.phx2.fedoraproject.org Package:
Org mode version 9.1.13 (9.1.13-elpa @
/home/cochard/.emacs.d/elpa/org-20180521/)
 

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