Arc patch does not download images in the diff. The patch command completes successfully but image size is 0.
andrew@andrew:~$ arc patch D2495
A webroot/dsn.png
property 'svn:executable' set on 'webroot/dsn.png'
property 'svn:mime-type' set on 'webroot/dsn.png'
OKAY Successfully applied patch to the working copy.
andrew@andrew:~$ ls -l webroot/dsn.png
-rwxr-xr-x 1 andrew users 0 Jun 2 11:38 webroot/dsn.png