I found an edge case problem for my Top Sites feature of Open Mentions. If a site uses www. as part of their address, my custom SQL didn’t take that into account and filtered it as not the same site. This was because subdomains count as a different site, but the top sites drops the www. bit for clarity of listing.
The result is that the site page for such listings reported there were no entries. Opps.
I fixed that by adding a clause for such sites. After some rudimentary testing, my oversight seems to have been fixed.