Being able to require a package by it's `package.json` `name` property inside itself. It led to situations where you couldn't require a module with the same name as its containing package from outside, like `require("dependency/dependency")`.

It's still possible to `require("montage")` inside of Montage because this has been added: https://github.com/Stuk/montage/blob/b1c444c8c5e03be2ae44685a70331e9075d04fa4/package.json#L13-L15