Hugo,
You shouldn't still be seeing issues from the bug report mentioned above. If you are, please try clearing the cache of your browser, which may have cached the Facebook Javascript file. It shouldn't, as that file is set to be non-cacheable, but sometimes browsers think they're smarter than the rest of the world.
If that doesn't work, please post (or Private Message) the URL of a page with the issues, and we'll look to see if it works for us or if there's some other possible explanation.
Thanks,
Alex