rlopes - 7:09 pm on May 13, 2011 (gmt 0)

@ JoePublisher #Facebook Redirect For Added String RewriteCond %{QUERY_STRING} ^fb_xd_fragment=.*$ RewriteRule ^(.*)$ [yourwebsitename.com\...] [R=301,L]

Seems like this will prevent the wrong version from being indexed, but the users affected by the bug will be still annoyed by clicking the Like button and being redirected back to the page, instead of actually "Liking" the page.