[wp-hackers] OT: Checkout SVN into another?

[Alex Hempton-Smith]

Hi all,
I'm trying to test out BuddyPress and I want to be able to update it all
(WPMU, BP and bbPress) using SVN.

I've checked-out WPMU and installed it into the root of my test-site. Now I
would like to check-out BP into the /wp-content/mu-plugins/ directory, but I
get an error becuase the root is already a working copy.

Here is my shell actions so far:

cd ~/example.com
svn co http://svn.automattic.com/wordpress-mu/trunk .
(CHECKS OUT)
cd ~/example.comcontent/mu-plugins/
svn co http://svn.buddypress.org/trunk .

But I get this error:

svn: '.' is already a working copy of a different URL

How would I go about having these two repos checked out? Is there any way of
me including it as a remote repo?

Cheers,
Alex