Bug: Spurious entries in agenda if tasks have a deadline [8.3.3 (8.3.3-2-g6bc48c-elpa @ /home/nmarais/.emacs.d/elpa/org-20160111/)]

[Neilen Marais <nmarais@gmail.com>]

I tested this with both the packaged org-mode that came with my ubuntu
15.04 emacs24 install and with the latest org version on elpa.

Tasks with deadlines in the future spuriously show up under today's
schedule. E.g. Today is 2016-01-15 and I have a task with a deadline set
as 2016-01-19:

** TODO Prepare Goals of Internship talk
   DEADLINE: <2016-01-19 Tue>

If I do an org-agenda week display (M-x orga-agenda a), I see a spurious
entry for that task:

...
Friday     15 January 2016
...
  SKA-indo-SA:In   4 d.:  TODO Prepare Goals of Internship talk

If I do a month display, a properly formatted 'deadline' entry is also
shown for the 19th:

Tuesday    19 January 2016
  SKA-indo-SA:Deadline:   TODO Prepare Goals of Internship talk

but the spurious entry remains at today's date. This is happening for
all my tasks with future deadlines, making my agenda display quite cluttered.

Emacs  : GNU Emacs 24.4.1 (x86_64-pc-linux-gnu, GTK+ Version 3.14.9)
 of 2015-03-21 on kissel, modified by Debian
Package: Org-mode version 8.3.3 (8.3.3-2-g6bc48c-elpa @
/home/nmarais/.emacs.d/elpa/org-20160111/)

Cheers
Neilen

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-log-done 'time
 org-confirm-shell-link-function 'yes-or-no-p
 org-agenda-custom-commands '(("c" "Context Next Tasks" tags-todo
                   (concat "SCHEDULED=\"\"+{" (mapconcat (quote car)
my-org-context-tag-alist "\\|") "}|SCHEDULED<=\"<today>\"+{"
(mapconcat (quote car) my-org-context-tag-alist "\\|") "}/NEXT")
                   ((org-agenda-sorting-strategy (quote (tag-up)))
(org-agenda-overriding-header "Context Next Tasks")))
                  ("s" "Startup View"
                   ((agenda "" ((org-agenda-ndays 3)
(org-deadline-warning-days 1)))
                (agenda ""
                 ((org-agenda-time-grid nil)
(org-deadline-warning-days 365) (org-agenda-entry-types (quote
(:deadline))) (org-agenda-skip-entry-if (quote scheduled))
(org-agenda-ndays 1)
                  (org-agenda-overriding-header "Unscheduled upcoming
deadlines:"))
                 )
                (todo "" (quote (org-agenda-overriding-header
"Unscheduled No Deadline TODO:"))))
                   )
                  ("o" "Context Next or Todo Tasks" tags-todo
(mapconcat (quote car) my-org-context-tag-alist "|")
                   ((org-agenda-skip-function (quote
(org-agenda-skip-entry-if (quote todo) (quote ("DONE")))))
(org-agenda-sorting-strategy (quote (tag-up)))
                (org-agenda-overriding-header "Context Next or Todo Tasks"))
                   )
                  ("w" todo "WAITING"))
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 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-better-keybindings)
 org-archive-hook '(org-attach-archive-delete-maybe)
 org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point
org-babel-execute-safely-maybe)
 org-cycle-hook '(org-cycle-hide-archived-subtrees
org-cycle-hide-drawers org-cycle-show-empty-lines
org-optimize-window-after-visibility-change)
 org-todo-keywords '((sequence "TODO(t)" "NEXT(n)" "WAITING(w)" "DONE(d)"))
 org-confirm-elisp-link-function 'yes-or-no-p
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-agenda-mode-hook '((lambda nil
             (setq org-agenda-files
              (cons (expand-file-name
"~/Dropbox/scratchpad/work/work_notebook.org")
               (cons (expand-file-name
"~/Dropbox/scratchpad/notebook.org") (find-lisp-find-files
"~/Dropbox/GTD/ActiveProjects" ".org$")))
              )
             )
            )
 org-agenda-files
'("/home/nmarais/Dropbox/scratchpad/work/work_notebook.org"
"/home/nmarais/Dropbox/scratchpad/notebook.org"
"/home/nmarais/Dropbox/GTD/ActiveProjects/Work.org"
            "/home/nmarais/Dropbox/GTD/ActiveProjects/SKA-indo-SA/SKA-indo-SA.org"
"/home/nmarais/Dropbox/GTD/ActiveProjects/SKA-learn-TANGO/SKA-learn-TANGO.org"
            "/home/nmarais/Dropbox/GTD/ActiveProjects/ICALEPCS2015/ICALEPCS2015.org"
"/home/nmarais/Dropbox/GTD/ActiveProjects/SKA-katcp-talk.org"
            "/home/nmarais/Dropbox/GTD/ActiveProjects/SKA-github-talk.org"
"/home/nmarais/Dropbox/GTD/ActiveProjects/None.org"
            "/home/nmarais/Dropbox/GTD/ActiveProjects/BladleesProgramMasterProject.org"
"/home/nmarais/Dropbox/GTD/ActiveProjects/StockTrackingSoftware/StockTrackingSoftware.org"
            "/home/nmarais/Dropbox/GTD/ActiveProjects/StockStrategy1/StockStrategy1.org"
"/home/nmarais/Dropbox/GTD/ActiveProjects/StockNewsScraper/StockNewsScraper.org"
            "/home/nmarais/Dropbox/GTD/ActiveProjects/SpeelGlassI/SpellGlassI.org"
"/home/nmarais/Dropbox/GTD/ActiveProjects/SightNotesMaster/SightNotesMaster.org"
            "/home/nmarais/Dropbox/GTD/ActiveProjects/SightNotes0.1/SightNotes0.1.org"
"/home/nmarais/Dropbox/GTD/ActiveProjects/OrgGTD/OrgGTD.org"
            "/home/nmarais/Dropbox/GTD/ActiveProjects/Glatal16/Glatal16.org"
"/home/nmarais/Dropbox/GTD/ActiveProjects/DimmerAlarm/DimmerAlarm.org"
            "/home/nmarais/Dropbox/GTD/ActiveProjects/Budgeting2011/Budgeting2011.org")
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 org-tag-alist '(("@work" . 119) ("@home" . 104) ("@UCT" . 117)
("@errands" . 101) ("@internet" . 105) ("@computer" . 99) ("leaving" .
108) ("MorningHour" . 109) ("Reading" . 114) ("SometimeMaybe" . 115)
         ("@Phone" . 112) ("@Janneke" . 106) ("WeeklyReview" . 118)
("Waiting" . 97))
 )