[wp-hackers] is this a bug?

[Rich Pedley]

from bbPress plugin development.

$this->file           = __FILE__;
returns: E:\htdocs\wpbeta\wp-content\plugins\bbpress\bbpress.php

However:
$this->file =  WP_CONTENT_DIR . '/plugins/bbpress/bbpress.php';

returns: E:\htdocs\wpbeta/wp-content/plugins/bbpress/bbpress.php

Note the difference \wp-content as opposed to /wp-content

Now tracing this back I find this:
define('ABSPATH', dirname(dirname(__FILE__)).'/');


Normally this doesn't make a difference, but I think this is causing 
an issue within get_themes (line 437 of wp-includes/theme.php)

'Theme Root URI' => str_replace( WP_CONTENT_DIR, content_url(), 
$theme_root )

this fails as they don't match.

For reference on my linux hosted site it works fine, but locally on 
Win 7(I use easyphp) it has been failing to correctly point to the 
child theme within bbPress. So I realise this is an unusual setup.

Thoughts?

Rich