Fixed a bug where comments on Poll HN posts wouldn't render properly

This is re: #69.  I couldn't figure out how to do this in the CSS selector (querying for tr:has(table td:eq(2)) instead of tr:has(table) gave me way more results than I wanted) and I don't see anything conceptually wrong with this solution.  I also have a feeling that this break statement is the cause of  #73, but I can't be sure.