Constructor Node(const indirect<Node>& parent) can't be called

[Ukilele]

This issue is a consequence of #186 (which itself was a consequence of #128). I came up with a (possibly contrived) issue with the latest version of our constructor:

#include <https://raw.githubusercontent.com/jbcoe/value_types/main/indirect.h>

struct Node {
    Node() = default; //ctor 1
    Node(xyz::indirect<Node>& parent) {} //ctor 2
};

void f() {
    xyz::indirect<Node> root;
    xyz::indirect<Node> child(root); //This will call the copy constructor of indirect and not the ctor 2 of Node
}

I know that in #159, I was complaining about the exactly opposite behavior that I am complaining about now. I am not sure what the desired behavior is. Should xyz::indirect<Node> child(root); call the copy-constructor of indirect or ctor 2 of Node?

[jbcoe]

At first glance, the current behaviour is correct.

A a;
A aa(a); // I'd expect `A(const A&)` to be called

Please let me know if I've got this muddled.

[jbcoe]

Guessing that this is ok. @Ukilele please re-open if I'm mistaken.