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%')

Inizia con la riproduzione Python fornita usando make_subplots, shared_yaxes e update_yaxes, quindi analizza come y-axis tickformat viene applicato ai subplot condivisi e alle etichette al passaggio del mouse. Il lavoro è completato quando i valori al passaggio del mouse del subplot in alto a destra usano in modo coerente il formato percentuale richiesto per l’asse condiviso.