Axis formatting not carrying over to hover text in shared axes

The code below produces subplots with shared Y axes (on the top row), then attempts to apply y axis formatting to display values in percentages. However, when hovering over the data points in the top right plot, I'm still seeing the default format instead of percentages. Wondering if that's intended, as I feel like the default behavior should be to apply the formatting to all the subplots with that shared axis.

from plotly.subplots import make_subplots
import plotly.graph_objects as go

fig = make_subplots(rows=2, cols=2,
                        specs=[[{}, {}],
                               [{"colspan": 2}, None]],
                        subplot_titles=("1", "2", "3"),
                        shared_yaxes=True,
                        horizontal_spacing=0.01,
                        vertical_spacing=0.15)

fig.add_trace(go.Scatter(x=[1,2], y=[0,1]),
                      row=1, col=1)

fig.add_trace(go.Scatter(x=[1,2], y=[0,1]),
                      row=2, col=1)

fig.add_trace(go.Scatter(x=[1,2], y=[0,1]),
                      row=1, col=2)

fig.update_yaxes(tickformat=',.1%')

先使用提供的 Python 复现代码以及 make_subplots、shared_yaxes 和 update_yaxes，然后追踪 y-axis tickformat 如何应用于共享子图和悬停标签。完成标准是右上角子图的悬停值与共享坐标轴一致地使用所请求的百分比格式。