File system check fails on a subdirectory multisite configuration

With file system check and our subdirectory multisite configuration, the check keeps running until it runs out of memory (even if we give it >1G of RAM). For our multisite config to work we must have symlinks in the root directory for the multisite's site name. The symlink points to the root directory itself. So something like:

drupal_root/sites/my.domain.mysite
drupal_root/mysite -> drupal_root

This creates an infinite loop which apparently the file system check in security_review isn't smart enough to detect. I don't know if it's a matter of not following symlinks or just not looping through the same directory structure more than once, but one or the other should be possible.

If we remove the multisite symlink, the security_review module runs fine (of course then our multisite configuration no longer works). With the multisite config (using the symlinks) we can't run the file system check of security_review. It runs fine if we skip that one check though.

The subdirectory multisite configuration we use is documented here: http://drupal.org/documentation/install/multi-site#symlink