livemap: tooltip may show wrong data on density2df

[IKupriyanov-HORIS]

plotSpec:

{
  "mapping": {},
  "data_meta": {},
  "ggsize": {
    "width": 500,
    "height": 300
  },
  "kind": "plot",
  "scales": [
    {
      "aesthetic": "fill",
      "low": "white",
      "high": "darkgreen",
      "scale_mapper_kind": "color_gradient"
    }
  ],
  "layers": [
    {
      "geom": "livemap",
      "mapping": {},
      "data_meta": {},
      "tiles": {
        "kind": "vector_lets_plot",
        "url": "wss://tiles.datalore.jetbrains.com",
        "theme": "color",
        "attribution": "Map: <a href=\"https://github.com/JetBrains/lets-plot\">\u00a9 Lets-Plot</a>, map data: <a href=\"https://www.openstreetmap.org/copyright\">\u00a9 OpenStreetMap contributors</a>."
      },
      "geocoding": {
        "url": "http://10.0.0.127:3020/map_data/geocoding"
      }
    },
    {
      "geom": "density2df",
      "mapping": {
        "x": [ -1.744, 2.904, 3.887, 7.358, -1.305, -3.474, 9.027, -2.874, 7.567, -0.444, 2.528, 1.945, 0.198, -2.551, 5.438, -5.336, 16.818, -1.701, 0.004, 7.607, 4.690, -1.005, -8.939, -8.141, 0.265, 0.312, 0.652, -6.703, 7.421, -3.160, -11.842, -8.565, 2.268, 7.127, 4.993, -4.642, -5.563, -2.631, 7.299, 8.540, -2.299, 1.268, 8.866, -4.057, -1.504, 2.340, 2.123, -6.938, 6.367, -6.087],
        "y": [ 4.918, 0.351, 2.909, 8.315, -3.443, 9.702, 2.281, 0.570, 1.755, 4.584, -4.076, -2.124, -2.639, -4.441, 3.366, 6.090, -4.161, -9.292, 1.757, -3.402, -3.407, -0.087, -4.258, 4.834, 1.448, -5.490, -0.926, -1.620, 6.565, -1.957, -2.953, -6.564, -8.916, -1.728, 3.626, -3.399, 0.062, -3.397, 6.832, 1.195, 5.791, 1.018, 4.943, -7.616, -1.953, 7.567, 0.611, -2.335, 0.608, 2.016],
        "fill": "..level.."
      },
      "data_meta": {},
      "alpha": 0.5
    }
  ],
  "metainfo_list": []
}

Tooltip shows data from outer area: