livemap: tile tooltip is not working with polygons layer present.

[alshan]

See nb: https://github.com/JetBrains/lets-plot/blob/master/docs/examples/jupyter-notebooks-dev/issues/map_tile_tooltip.ipynb

The tooltip is working on all plots except the last one.

[alshan]

Need to check with recent LP version.

[IKupriyanov-HORIS]

Still happens:

from lets_plot import *
from lets_plot.geo_data import *

LetsPlot.setup_html()
ggplot() + \
    geom_livemap() + \
    geom_tile(x=-71.08845, y=42.71104, tooltips=layer_tooltips().line("Some info")) + \
    geom_map(map=geocode_states("Massachusetts").get_limits())

Plot spec:

{
  "mapping": {},
  "data_meta": {},
  "kind": "plot",
  "scales": [],
  "layers": [
    {
      "geom": "livemap",
      "mapping": {},
      "data_meta": {},
      "tiles": {
        "kind": "vector_lets_plot",
        "url": "ws://10.0.0.127:3943",
        "theme": "color",
        "attribution": "Map: <a href=\"[https://github.com/JetBrains/lets-plot\](https://github.com/JetBrains/lets-plot/)">\u00a9 Lets-Plot</a>, map data: <a href=\"[https://www.openstreetmap.org/copyright\](https://www.openstreetmap.org/copyright/)">\u00a9 OpenStreetMap contributors</a>."
      },
      "geocoding": {
        "url": "http://10.0.0.127:3020/map_data/geocoding"
      }
    },
    {
      "geom": "tile",
      "mapping": {},
      "tooltips": {
        "formats": [],
        "lines": [
          "Some info"
        ]
      },
      "data_meta": {},
      "x": -71.08845,
      "y": 42.71104
    },
    {
      "geom": "map",
      "mapping": {},
      "data_meta": {},
      "map": {
        "state": [
          "Massachusetts"
        ],
        "found name": [
          "Massachusetts"
        ],
        "geometry": [
          "{\"type\": \"Polygon\", \"coordinates\": [[[-69.9292968213558, 41.2393619120121], [-69.9292968213558, 42.8867787122726], [-73.5082098841667, 42.8867787122726], [-73.5082098841667, 41.2393619120121], [-69.9292968213558, 41.2393619120121]]]}"
        ]
      },
      "map_data_meta": {
        "geodataframe": {
          "geometry": "geometry"
        }
      }
    }
  ],
  "metainfo_list": []
}