Difference in NaNs in hover values between figure and figure widget

Nans are labeled as 0.0 when using figure, but correctly as NaN when using FigureWidget.

Minimal reproducible example .

import numpy as np
import plotly.graph_objects as go

x = np.random.random(10)
y = np.random.random(10)
color = np.ones(10)*np.nan

fig = go.Figure(
    data=go.Scatter(
        x=x,
        y=y, 
        marker=dict(
            size=16, #set color equal to a variable
            colorscale='Viridis', # one of plotly colorscales
            showscale=True,
            color=color
        ),
        mode='markers',
        hoverinfo="text",
        hovertemplate="x=%{x:.3f}<br>y=%{y:.3f}<br>%{marker.color:.3f}"
    )
)
fig

go.FigureWidget(fig)

首先分别使用 go.Figure 和 go.FigureWidget 运行最小可复现示例，比较 marker.color 包含 NaN 时生成的 hover 值。跟踪不同的 hover 值处理方式，并在两种 figure 类型都在 hovertemplate 中一致显示 NaN 时验证完成情况。