First request after copying and pasting an URL in URL bar seems to go over the catch-all circuit

If one goes e.g. to our blog and copies and pastes a link from the Upcoming Events section (like https://blog.torproject.org/events/first-amendment-21st-century-pittsburgh) and hits return then the first request seems to go over the catch-all circuit:

[06-12 08:47:21] Torbutton INFO: tor SOCKS: https://blog.torproject.org/events/first-amendment-21st-century-pittsburgh via
                       --unknown--:d106e3543536c1d88e4b356a8d2644e8
[06-12 08:47:21] Torbutton INFO: tor SOCKS: https://blog.torproject.org/events/first-amendment-21st-century-pittsburgh via
                       torproject.org:7ec24bef3562e08e7b096e5b1049cb49

If that's indeed the case we need to fix that