First comment doesn't appear, just after refresh

I have installed a fresh wordpress, setup only the Facebook plugin. In the Comment Box, the first comment only appears after I refresh the whole page. From the second it works OK.

I found this : http://developers.facebook.com/bugs/370026349696283, but they said it was ok now.

I checked the AJAX Response, and I can see my comment in it.

http://ww.wp.xz.cn/plugins/facebook/