Rustdoc renders `where Q: ?Sized` incorrectly

Code:

pub fn seek_by<Q, F>(&mut self, mut f: F) -> bool
where
    K: Borrow<Q>,
    Q: ?Sized,
    F: FnMut(&Q) -> cmp::Ordering,
{
    // ...
}

Rustdoc:

[GuillaumeGomez]

Modern art. That's a feature, not a bug. 😛