[Orgmode] BUG: Clocking in starts clock on the wrong task; Org-mode version 6.31trans (release_6.31.9.ga90f2)

[Bernt Hansen]

If you narrow to subtree when there is a following task the narrowed
buffer has a blank line at the end.  If you are on this line and
clock-in it starts the clock for the _following_ task (outside the
narrowed subtree) and not the task you are looking at.

I stumbled across this today because the following task was already
over the estimated limit when I clocked it in - which triggered my
alarm sound.

,----[ test.org ]
| #+STARTUP:
| * TODO One
| * TODO Two
`----

,----[ minimal.emacs ]
| (add-to-list 'load-path (expand-file-name "~/git/org-mode/lisp"))
| (add-to-list 'auto-mode-alist '("\\.\\(org\\|org_archive\\|txt\\)$" . 
org-mode))
| (require 'org-install)
| 
| (global-set-key "\C-cl" 'org-store-link)
| (global-set-key "\C-ca" 'org-agenda)
| (global-set-key "\C-cb" 'org-iswitchb)
`----

Key sequence to reproduce:

$ emacs -q -l minimal.emacs test.org

| Key                           | Notes                         |
|-------------------------------+-------------------------------|
| C-n                           | Go to first task '* TODO One' |
| M-x org-narrow-to-subtree RET | Narrow to subtree             |
| C-n                           | Move to last blank line       |
| C-c C-x C-i                   | Clock in (next) task          |
|-------------------------------+-------------------------------|

-Bernt

Emacs  : GNU Emacs 22.2.1 (i486-pc-linux-gnu, GTK+ Version 2.12.11)
 of 2008-11-09 on raven, modified by Debian
Package: Org-mode version 6.31trans (release_6.31.8.g7485)