[BUG]: Mixed bar orientations hide one bar on initial render, but restyle renders correctly

Exécutez la reproduction fournie en Python et Playwright, puis comparez la capture d’écran du rendu initial avec le résultat de Plotly.restyle. Suivez le chemin de rendu des barres pour un mélange d’orientations horizontales et verticales ; le travail est terminé lorsque les deux rendus affichent les trois barres rouges sans rognage ni différences causées par le timing du rendu.

Description

A figure with two go.Bar traces renders differently depending on when the second
trace is changed from horizontal to vertical.

If fig.data[1].orientation = "v" is set before the first render, one red vertical
bar is missing or clipped. If the same base figure is rendered first and the same
orientation value is applied later with Plotly.restyle, all three red bars are
visible.

Screenshots/Video

Steps to reproduce

import io

import plotly
import plotly.graph_objects as go
import plotly.io as pio
from PIL import Image, ImageChops
from playwright.sync_api import sync_playwright

print(f"Plotly version: {plotly.__version__}")

fig = go.Figure(
    [
        go.Bar(name="a", orientation="h", x=[1, 3, 2], y=[0, 1, 2]),
        go.Bar(name="b", orientation="h", x=[3, 2, 1], y=[0, 1, 2]),
    ]
)
fig.update_layout(xaxis_title="value", yaxis_title="index", legend_title_text="variable")

# plot1.png: set orientation before the first render.
fig.data[1].orientation = "v"
assert fig.data[1].orientation == "v"
html1 = pio.to_html(fig, full_html=True, include_plotlyjs="cdn")

# plot2.png: render first, then apply the same value with Plotly.restyle.
fig.data[1].orientation = "h"
html2 = pio.to_html(fig, full_html=True, include_plotlyjs="cdn")
html2 = html2.replace(
    "</body>",
    """
<script>
window.addEventListener("DOMContentLoaded", () => {
    const plotEl = document.getElementsByClassName("plotly-graph-div")[0];
    setTimeout(() => {
        Plotly.restyle(plotEl, {"orientation": "v"}, [1]);
    }, 1000);
});
</script>
</body>""",
)

with sync_playwright() as playwright:
    browser = playwright.chromium.launch(
        headless=True,
        args=["--no-sandbox", "--disable-dev-shm-usage", "--disable-gpu"],
    )
    page = browser.new_page(viewport={"width": 1200, "height": 800})

    page.set_content(html1)
    page.wait_for_timeout(1500)
    img1 = page.screenshot(path="plot1.png")

    page.set_content(html2)
    page.wait_for_timeout(2000)
    img2 = page.screenshot(path="plot2.png")

    browser.close()

diff = ImageChops.difference(
    Image.open(io.BytesIO(img1)).convert("RGB"),
    Image.open(io.BytesIO(img2)).convert("RGB"),
)
assert diff.getbbox() is not None, "Screenshots are unexpectedly identical."
print("Saved plot1.png and plot2.png")
```### Notes

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