Keywords aren't being lowercased when inserted with diesel :(

[carols10cents]

Problem is here where NewKeywords that get inserted aren't using the lowercased keyword:

crates.io/src/keyword.rs

Line 66 in b41061f

.map(|s| (s.to_lowercase(), NewKeyword { keyword: *s }))

Discovered while trying to convert more stuff to use diesel.

Tests didn't catch it because the tests are using the non-diesel way of inserting keywords, which does lowercase them :(

• crates.io/src/tests/keyword.rs

  Line 48 in b41061f

  ::mock_keyword(&mut req, "UPPER");

• crates.io/src/tests/all.rs

  Line 300 in b41061f

  Keyword::find_or_insert(req.tx().unwrap(), name).unwrap()

This is a problem in production, for example the keywords 2d and 2D: https://crates.io/keywords?sort=alpha

• 2d 37 crates
• 2D 14 crates

We'll need to collapse these back down to the lowercased version once this is fixed.