'hovercompare' modebar button does not retain hovermode y

MWE:

const data = [
  {
    x: [1, 2, 3, 4],
    y: [10, 15, 13, 17],
    type: 'scatter'
  },
  {
    x: [1, 2, 3, 4],
    y: [10, 13, 15, 17],
    type: 'scatter'
  }
];

const layout = {
  hovermode: 'y',
  modebar: { add: ['hoverclosest', 'hovercompare'] }
};

Plotly.newPlot('myDiv', data, layout);

One might expect that if the hoverclosest button is clicked and then hovercompare after, it should return to the hover comparison by y values, as initially set, but instead, it switches to the default comparison by x values. If there is a workaround, that would also be helpful.

Commencez par reproduire le MWE fourni avec hovermode défini sur y et les boutons de la modebar hoverclosest et hovercompare activés. Suivez la manière dont ces boutons modifient hovermode, puis vérifiez que le retour à hovercompare conserve la comparaison selon les valeurs de y au lieu de revenir aux valeurs de x.