Compatibility with flag 2.2 and mollom

I built commons from 08c04684 and enabled mollom protection on the user registration form. I went to go post a q&a to my first group and I got a fatal:

Recoverable fatal error: Object of class flag_node could not be converted to string in mollom_flag_reason_form() (line 180 of /mnt/www/html/capitalcampdev/docroot/profiles/commons/modules/contrib/mollom/mollom.flag.inc).

The node itself posted, since it was recoverable, but sending a user a page that says fatal is a little bad. I think 08c04684 might have introduced an incompatibility with mollom.