Copy-pasting from #189 (comment), since that issue is closed:

I think I found a bug. I tried to sort by middle initial in my salaries set, and many middle initials are null. The next_url gets set by Datasette to:

http://localhost:8001/salaries-d3a5631/2017+Maryland+state+salaries?_next=None%2C391&_sort=middle_initial

But then None is interpreted literally and it tries to find a name with the middle initial "None" and ends up skipping ahead to O on page 2.