Guillaume E

> because if they're ord-equivalent-but-not-actually-identical you want them to stay in the original order. Good point! I missed that: the `minmax_by(_key)` documentation specifies this behavior, but `.minmax()` doesn't.

With Paralight v0.0.10, it's now possible to define parallel iterators where each bucket produces an `Option` without needing `Item` to contain an option. This addresses @Amanieu's comment and makes the...