KLayJS bug

graph.json

{
  "children": [
    {
      "id": "A",
      "children": [
        {
          "id": "B",
          "labels": [{"text": "B"}],
          "width": 40,
          "height": 40
        }
      ],
      "edges": [{"id": "_transition/B/C/1", "source": "B", "target": "C"}],
      "labels": [{"text": "A"}],
      "width": 64,
      "height": 64
    },
    {
      "id": "C",
      "labels": [{"text": "C"}],
      "width": 40,
      "height": 40
    }
  ],
  "width": 88,
  "height": 160
}

output.json

{
  "children": [
    {
      "id": "A",
      "children": [
        {
          "id": "B",
          "labels": [
            {
              "text": "B"
            }
          ],
          "width": 40,
          "height": 40,
          "$H": 39,
          "x": 12,
          "y": 12
        }
      ],
      "edges": [
        {
          "id": "_transition/B/C/1",
          "source": "B",
          "target": "C"
        }
      ],
      "labels": [
        {
          "text": "A"
        }
      ],
      "width": 64,
      "height": 64,
      "$H": 38,
      "x": 12,
      "y": 84.00000047683716
    },
    {
      "id": "C",
      "labels": [
        {
          "text": "C"
        }
      ],
      "width": 40,
      "height": 40,
      "$H": 40,
      "x": 12,
      "y": 12
    }
  ],
  "width": 88,
  "height": 160.00000047683716,
  "$H": 37
}