Previously, "Then: Go to unlabeled appearance" would always take you to
the *first* unlabeled appearance in our database.
Now, we go to the *next* unlabeled appearance in the list, relative to
this one.
Look, I'll be real, I have literally not run these automated tests in
probably like a whole decade. Most of these files are empty, the ones
that aren't seem basically trivial, and I bet half of it would fail
anyway.
If I wanted to do real automated testing, I would basically want to
start from scratch anyway, and apply coverage I can trust to the areas
I actually care about.
Until then, I feel like these gems and files are mostly just clutter,
and I don't like them being One More Barrier To Entry. Goodbye, unused
complexity!
