[BUG]: barmode="group" not working with second y axis

import plotly.graph_objects as go

def bar_chart_with_error_bars():
    # Trace C
    trace_c = go.Bar(
        x=["Trial 1", "Trial 2", "Trial 3"],
        y=[3, 6, 4],
        name="Trace C",
        error_y=dict(
            type="data",
            array=[1, 0.5, 1.5]
        )
    )

    # Trace E (secondary y-axis)
    trace_e = go.Bar(
        x=["Trial 1", "Trial 2", "Trial 3"],
        y=[400, 700, 300],
        name="Trace E",
        yaxis="y2",
        error_y=dict(
            type="data",
            array=[50, 100, 200]
        )
    )

    # Layout
    layout = go.Layout(
        barmode="group",
        yaxis=dict(title="Trace C"),
        yaxis2=dict(
            title="Trace E",
            overlaying="y",
            side="right"
        )
    )

    # Create figure
    fig = go.Figure(data=[trace_c, trace_e], layout=layout)

    # Save to HTML
    fig.write_html("/tmp/trials.html")


# Call the function
bar_chart_with_error_bars()

Resulting chart. Stack instead of group.

rust version is also broken, but in different way - overlay instead of group: https://github.com/plotly/plotly.rs/issues/391

首先运行内联 Python 复现程序，并打开生成的 /tmp/trials.html，以比较 barmode="group" 与位于不同 y 轴上的 traces。跟踪负责条形位置的图表渲染入口点；完成的标准是两个 traces 并排渲染而不是堆叠，同时保留它们的次坐标轴设置和误差条。