Multiple traces in a FigureWidget break callbacks

Hello!
I am using

plotly 5.7.0
jupyterlab 3.3.2
ipywidgets 7.7.0
(these are the latest versions of each package)

I am not using Dash.
What I am trying to achieve is a simple FigureWidget with two scatter plots in it, each with a callback that prints the element the user has clicked on. However, the callbacks are fired incorrectly. The trace object given to the callback function is always the last added trace, not the one that the user clicked on.

Here is a minimal example which I adapted from the official documentation (https://plotly.com/python/click-events/#update-points-using-a-click-callback)

import plotly.graph_objects as go
from ipywidgets import Output
import numpy as np
import ipywidgets

np.random.seed(1)

scatter_1 = go.Scatter(x=np.random.rand(100), y=np.random.rand(100), mode='markers', hovertext="hello, I am scatter 1", marker={"symbol": "triangle-up", "size": 10, "color": "red"},)
scatter_2 = go.Scatter(x=np.random.rand(100), y=np.random.rand(100), mode='markers', hovertext="hello, I am scatter 2", marker={"symbol": "triangle-down", "size": 10, "color": "blue"},)

f = go.FigureWidget()
f.add_trace(scatter_1)
f.add_trace(scatter_2)
f.layout.hovermode = 'closest'

f

This correctly renders the figure:

Then, I add a callback, one to each trace, by manipulating f.data:

o = ipywidgets.Output()

@o.capture(clear_output=True)  
def callback(trace, points, selector):
    print(trace)
    print(points)
    print(selector)
        
f.data[0].on_click(callback)
f.data[1].on_click(callback)

o

Clicking a blue triangle works, it correctly shows the clicked trace and point:

Clicking a red triangle yields wrong output. The point object is somehow empty, and the trace object is wrong (trace 1 even though trace 0 was clicked):

使用 plotly 5.7.0、JupyterLab 3.3.2 和 ipywidgets 7.7.0 复现包含两条轨迹的 FigureWidget 示例。首先跟踪 f.data[i].on_click(callback) 的处理过程，并比较第一条和最后一条轨迹的回调。点击任一轨迹都能正确报告被点击的轨迹和点，即表示完成。