When moving headings, blank lines are added to the display

["Sebastien Vauban" <sva-news-D0wtAvR13HarG/iDocfnWg@public.gmane.org>]

Hello,

As a short video is better than a long writing, see the effect on
http://screencast.com/t/1GUx4OiqY1O4.

In summary, with such a file:

--8<---------------cut here---------------start------------->8---
* Personal
  :PROPERTIES:
  :CATEGORY: Personal
  :END:

** TODO Make dentist appointment
   SCHEDULED: <2013-02-05 Tue>

** TODO Check weekend hours at the gym
   SCHEDULED: <2013-02-06 Wed>
   :PROPERTIES:
   :Effort:   0:10
   :END:

** Pay electricity bill

** Buy dog food

** Mail package to Susan

** Read "Getting Things Done"

** Do jogging

** Travel to Boston

*** TODO Find a flight

*** TODO Reserve hotel room

*** TODO Schedule meetings

*** TODO Submit expense report
--8<---------------cut here---------------end--------------->8---

When moving up/down some tasks in a collapsed view, extra blank lines are
inserted (on the display -- not physically in the file) between some headings,
though not all.

Best regards,
  Seb

-- 
Sebastien Vauban