Hi!
I was wondering how it is supposed to work when linked list doesn’t have a references to it (which means that isKnownUniquelyReferenced is true) and we want to remove node after given node?
As far as I can see method copyNodes(returningCopyOf node: Node<Value>?) -> Node<Value>? returns nil if isKnownUniquelyReferenced(&head) is true, which means that first guard in public mutating func remove(after node: Node<Value>) -> Value? is also throws a nil
So I can’t see how removing is going to work when there are no references to the head node.