Violin span argument not working

[aleferna12]

From what I understand, the 'span' argument when combined with 'spanmode="hard"' should determine where the distribution is cut-off. This is not working, see below:

df = px.data.iris()
go.Figure(go.Violin(
    y=df["petal_length"],
))

df = px.data.iris()
go.Figure(go.Violin(
    y=df["petal_length"],
    spanmode="hard",
    span=[0, 3]
))

As you can see, the plot is cut-off at the data ranges (0 - 6.9) instead of using the provided span values.

This is with plotly == 5.20.0