:It was renamed, Gimmebot saw the rename and updated FA and FA2007 (all fine so far), but then it was renamed back and FA was manually updated without a corresponding change to FA2007.  The main page dates are kept in a file on the machine Rick Bot runs on and if the bot encounters an entry in one of the by year summary files that is neither FA or FFA it leaves the entry as FFA without a main page date. In cases like this the bot also adds a comment to the end of the table in WP:WBFAN indicating there's a problem in one of the by-year summary files, like this.