Wordpress MU redirection on path-based install

[antialias]

example:

I have a fresh WPMU instance set up to work with paths. Base install location is set to

​http://example.com/

I have a blog set up on ​http://example.com/site/ and a post that is accessible at

​http://example.com/site/blog/2009/09/01/hello-world/

If I add a www. into this path, like this:

​http://www.example.com/site/blog/2009/09/01/hello-world/

WPMU will redirect to

​http://example.com/site/

Expected behavior is to redirect to

​http://example.com/site/blog/2009/09/01/hello-world/

The fix is a one-liner: line 167 in wpmu-settings:

header( "Location: http://" . $current_site->domain . $current_site->path );

change to:

header( "Location: http://" . $current_site->domain . $_SERVER['REQUEST_URI'] );

The patch is attached.

moved over to the TRAC instance for MU:
​http://trac.mu.wordpress.org/attachment/ticket/1105/