SVG export shows text 'Node' instead of 'Buy milk'

[xamde]

Sample file:

{
  "ocif": "https://canvasprotocol.org/ocif/v0.5.1-draft",
  "nodes": [
    {
      "id": "sticky-note-milk", "position": [ 100, 100 ], "size": [ 150, 75 ], "resource": "res_milk", "data": [
      {
        "type": "@ocif/node/rect", "fillColor": "#FFFF00"
      }
    ]
    }
  ], "resources": [
  {
    "id": "res_milk", "representations": [
    {
      "mimeType": "text/plain", "content": "Buy milk"
    }
  ]
  }
]
}