Scattergl does not fill (`tonexty`) if another Scattergl trace is present

When attempting to fill the area between two lines using Scattergl, no filled area is showing up when another Scattergl trace is present before the two traces I'm trying to fill between. See the example below.

I'm not sure if this issue is related to some of the other issues posted about Scattergl and filling but none of those seem to mention the filled area not showing up, so I figured I'd post a new issue.

plotly version 5.18.0

Not working

This example shows what i mean:

import plotly.graph_objects as go
import numpy as np

upper_trace = go.Scattergl(
    x=np.arange(10),
    y=np.ones(10),
    mode="lines",
    line_color="blue",
    fill="tonexty",
    legendgroup="area",
)
lower_trace = go.Scattergl(
    x=np.arange(10),
    y=-np.ones(10),
    mode="lines",
    line_color="blue",
    fill="tonexty",
    legendgroup="area",
    showlegend=False,
)
other = go.Scattergl(
    x=np.arange(10),
    y=2 * np.ones(10),
    mode="lines+markers",
    line_color="red",
)

go.Figure([other, upper_trace, lower_trace])

Output:

Working

go.Figure([upper_trace, lower_trace, other])

Thanks in advance for taking a look.

使用 Plotly 5.18.0 重现两个 Python 示例，重点关注 Scattergl 轨迹及其顺序。跟踪 fill="tonexty" 的 Scattergl 渲染路径；当另一条 Scattergl 轨迹位于这两条轨迹之前时，填充区域会出现，并且在更改顺序后仍然正确，即表示完成。