Plotly Dash Scattermapbox bug?

test.py

import dash
from dash import dependencies as dd
import dash_core_components as dcc
import dash_html_components as html
import plotly.graph_objs as pg


# Config
app = dash.Dash()
app.scripts.config.serve_locally = True

# Create geodata
geoj = {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              174.74475860595703,
              -36.86533886128865
            ],
            [
              174.77737426757812,
              -36.86533886128865
            ],
            [
              174.77737426757812,
              -36.84913134182603
            ],
            [
              174.74475860595703,
              -36.84913134182603
            ],
            [
              174.74475860595703,
              -36.86533886128865
            ]
          ]
        ]
      }
    }
  ]
}
lat = -36.8576
lon = 174.7604

def create_map(color, with_layers=False):
    data = pg.Data([
        pg.Scattermapbox(
            lon=[lon],
            lat=[lat],
            mode='markers',
            marker=pg.Marker(
                size=20,
                color=color
            ),
            text='This polygon should be colored ' + color,
            hoverinfo='text',
        )
    ])
    mapbox_key = "pk.eyJ1IjoiY2hlbHNlYXBsb3RseSIsImEiOiJjamI1aWx5OG0zOWF3Mndta3lnNjE3OW1yIn0.cLk9q87t4xbaeq-bLBYmBA"
    layout = pg.Layout(
        hovermode='closest',
        showlegend=False,
        margin=dict(t=40),
        mapbox=dict(
            accesstoken=mapbox_key,
            bearing=0,
            zoom=12,
            center={'lon': lon, 'lat': lat},
            style='light',
            layers=[dict(
                sourcetype='geojson',
                source=geoj['features'][0],
                type='fill',
                color=color,
                opacity=0.5,
            )],
        ),
    )

    if not with_layers:
        del layout['mapbox']['layers']

    return {'data': data, 'layout': layout}

app.layout = html.Div([
    html.H1(children="Scattermapbox test with layers"),
    html.Label('Choose a color'),
    dcc.Dropdown(
        options=[
            {'label': 'orange', 'value': 'orange'},
            {'label': 'blue', 'value': 'blue'},
        ],
        value='orange',
        id='color-choice',
    ),
    html.Div([
        dcc.Graph(id='map1', className='six columns'),
        dcc.Graph(id='map2', className='six columns'),
    ])
])

@app.callback(
    dd.Output('map1', 'figure'),
    [dd.Input('color-choice', 'value')])
def update_map1(color):
    return create_map(color)

@app.callback(
    dd.Output('map2', 'figure'),
    [dd.Input('color-choice', 'value')])
def update_map2(color):
    return create_map(color, with_layers=True)

app.css.append_css({
    'external_url': 'https://codepen.io/chriddyp/pen/bWLwgP.css'
})

if __name__ == '__main__':
    app.run_server(debug=True)