[BUG]: legend1 behaves special

[jendrikw]

Description

setting properties of layout.legend1 seems to have no effect. I'm very confused.

Screenshots/Video

(screenshot from codepen linked below)

Steps to reproduce

https://codepen.io/Shack-1-Spoilage/pen/MYKQzaV

Note that the legends have the same settings:

    legend1: {
      xref: "x1",
      yref: "y1",
      orientation: "h",
      x: 0.5,
      y: 0.5,
      xanchor: "center",
      yanchor: "center"
    },
    legend2: {
      xref: "x1",
      yref: "y2",
      orientation: "h",
      x: 0.5,
      y: 0.5,
      xanchor: "center",
      yanchor: "center"
    },
    legend3: {
      xref: "x1",
      yref: "y3",
      orientation: "h",
      x: 0.5,
      y: 0.5,
      xanchor: "center",
      yanchor: "center"
    }

[my-tien]

Hi, as far as I know there is no "legend1" property. It's "legend", "legend2", etc. See e.g. this documentation https://plotly.com/python/reference/scatter/#scatter-legend