{
  "provenance": "Minimized and anonymized from the private #277 resize regression export; user names, ids, markers, layout and unrelated geometry were removed.",
  "gridStep": 5,
  "rooms": [
    {
      "id": "room-main",
      "poly": [[0, 0], [662, 0], [662, -5], [782, -5], [782, 250], [662, 250], [662, 245], [0, 245]]
    },
    {
      "id": "room-neighbour-a",
      "poly": [[0, 245], [0, 100], [339, 100], [339, 245]]
    },
    {
      "id": "room-neighbour-b",
      "poly": [[339, 245], [339, 100], [662, 100], [662, 245]]
    }
  ],
  "selected": { "roomId": "room-main", "edge": 6 },
  "expectedReason": "partial-shared"
}