json.debug circular reference warning bug

[mjbrisebois]

Circular reference warnings should only happen when the reference is a parent or the other branch references the parent nodes.

{
    "id": "test-alice",
    "actor": "alice",
    "agent": "uhCAkkY-SQQRHaIxrVE6k8OUX4PHBkwZygV4mdboZ5wWAKaZG4jee",
    "cells": {
        "comms": {
            "id": [
                "uhC0kJ97EtAUxbTF7BnZeE_2SzdKHczBSRmzJj4cCvaas2dlTBseB",
                [Circular reference to #/agent]
            ],
            "dna": {
                "role_id": "comms",
                "path": "/home/matthew/projects/zome-public-comms/packs/dna/comms.dna",
                "hash": [Circular reference to #/cells/comms/id/0]
            },
            "agent": [Circular reference to #/agent]
        }
    }
}

[mjbrisebois]

Oops, this was only half fixed

[mjbrisebois]

7d8a0a9 distinguishes between a duplicate reference to an object vs a circular reference. This should satisfy the issue for now. What makes this problem difficult is that a non-circular reference could still be circular if the 2 branches reference each other.