Problem with GeoJSON style using version 0.12.6

[JamesMaxwellHarrison]

Hi, I am trying to dynamically update a GeoJSON style based off of its properties. My code works using the style_callback feature in both versions 0.12.4 and 0.12.6 when I use Choropleth, but for GeoJson it seems to work for me only in version 0.12.4 (not in 0.12.6). Below I provide sample code and resulting outputs for both versions 0.12.4 and 0.12.6.

import ipyleaflet 
import json 
import pandas as pd

geo_json_data = json.load(open('us-states.json')) 
m = ipyleaflet.Map(center = (43,-100), zoom = 4)

layer = ipyleaflet.GeoJSON(
    data=geo_json_data,
    style={'color':'red'}
)

m.add_layer(layer)
m

# To add callback for style
def compute_style(feature):
    return {
        'opacity': feature['properties']['name']
    }

layer.style_callback=compute_style

print(layer.data['features'][5]['properties'])

Of course, assigning the state name to opacity is a silly example. In my real data I have the year that a railroad was built and I want to compare that value to the year generated from a ipywidget play box to allow for a "video" of railroads being built. So, the opacity will equal 0 if the year from the ipywidget is less than the build date of the railroad and 1 otherwise.

The printed result I get from ipyleaflet version 0.12.4 is what I want

{'name': 'Colorado', 'style': {'opacity': 'Colorado'}}

That is, the opacity is assigned the value from the same state.

The printed result I get from ipyleaflet version 0.12.6 is

{'name': 'Colorado', 'style': {'color': 'red', 'opacity': 'Wyoming'}}

It appears that in version 0.12.6 the last state's value is assigned to all features

Am I doing something wrong? Should I change my notation somehow after updating to version 0.12.6 so that each feature is assigned values from its own properties?

Thanks

[JamesMaxwellHarrison]

In a related issue, style_callback dynamically updates Choropleth layers but not GeoJSON layers. It manages to add the style_callback changes to the layer style, but the graph is not automatically updated. I have tried this in 0.12.4, but I haven't tried in 0.12.6 yet.

[martinRenou]

Thanks for opening an issue.

[martinRenou]

Fixed by #600