Yes, I filed it here too in fact.
https://developers.facebook.com/bugs/621107951311170/
Is there any way to override it in the meantime? Seems that some people on Stackoverflow are saying that adding mobile="false" solves the problem and also here.
I tried to add mobile="false" to the DIVs in social_plugins/comments.php but it didn't have any effect. I am probably modifying the wrong place. Where is the actual markup of the fb-comments div in the plugin?