Hi Nicolas,

On Fri, 25 Nov 2016 20:24:31 +0900,
Nicolas Goaziou wrote:
> 
> I cannot reproduce your problem? Could you try with -Q (and a minimal
> Org configuration)?

Hmm... That's what I did and got the following:

Week-agenda (W48):
Monday     28 November 2016 W48
  a:          DONE org
Tuesday    29 November 2016
  a:          DONE org                                                          
Wednesday  30 November 2016                                                     
  a:          DONE org

Let me try again.

$ cd ~/src/org-mode
$ git describe
release_9.0.1-74-g3d80b35
$ make clean autoloads
$ ~/src/emacs25/src/emacs -Q -l /tmp/a.el -f 'org-agenda'

now I get

Week-agenda (W48):
Monday     28 November 2016 W48
Tuesday    29 November 2016
  a:          DONE org
Wednesday  30 November 2016
Thursday    1 December 2016
Friday      2 December 2016
Saturday    3 December 2016
Sunday      4 December 2016

the commit 4b99ed5e seems to change the output a bit.  But I still get
the done entry.

I'm attaching those two files (just in case) but the contents are:

/tmp/a.el:
(add-to-list 'load-path "~/src/org-mode/lisp")
(setq org-agenda-files '("/tmp/a.org"))

/tmp/a.org:
* DONE org
  DEADLINE: [2016-01-07 Thu 17:39]

  SCHEDULED: <2015-09-29 Tue .+1w>

BTW, I'm on "GNU Emacs 25.1.90.1 (x86_64-pc-linux-gnu) of 2016-11-29", if it mutters.

$ cd ~/src/emacs25
$ git describe
emacs-24.5-rc3-fixed-8534-gf6da597

Let me know if you need any other info.

Thanks,
-- 
            yashi