[O] [bug] Org link dialog escapes URL spaces incorrectly

[Jeff Horn]

Org-mode version 7.7 (release_7.7.404.ga17c.dirty)
GNU Emacs 24.0.50.3 (i386-apple-darwin9.8.0, NS apple-appkit-949.54)
of 2011-08-10 on braeburn.aquamacs.org - Aquamacs Distribution 3.xdev

Inserting a link through the link dialog doesn't escape URLs with
spaces properly. Where a space is '%20', org will insert the link as
'%2520'. I'm not certain of URL escape codes, but could org be trying
to escape the % sign? Perhaps a missing slash in a regexp somewhere?

1) Use =C-c C-l= to use dialog. Paste a link, like the following.

http://www.dartmouth.edu/~dirwin/Did%20France%20Cause%20the%20Great%20Depression.pdf

2) Use =C-c C-o= to open the link. Be weirded out about a 404. Inspect URL.

,----[ Actual ]
| - [ ] 
[[http://www.dartmouth.edu/~dirwin/Did%2520France%2520Cause%2520the%2520Great%2520Depression.pdf][Link
Description]]
`----

,----[ Expected ]
| - [ ] 
[[http://www.dartmouth.edu/~dirwin/Did%20France%20Cause%20the%20Great%20Depression.pdf][Link
Description]]
`----

--
Jeffrey Horn
http://www.failuretorefrain.com/jeff/