坐标轴刻度线自动旋转给了选项，但永远旋转90度，为什么 about g2 HOT 1 CLOSED

import { Chart } from '@antv/g2';

const data = [
  { year: '1991/04/10', value: 3 },
  { year: '1992/04/10', value: 4 },
  { year: '1993/04/10', value: 3.5 },
  { year: '1994/04/10', value: 5 },
  { year: '1995/04/10', value: 4.9 },
  { year: '1996/04/10', value: 6 },
  { year: '1997/04/10', value: 7 },
  { year: '1998/04/10', value: 9 },
  { year: '1999/04/10', value: 13 },
];

const chart = new Chart({
  container: 'container',
  autoFit: true,
  paddingBottom: 40, // 这里
});

chart
  .data(data)
  .encode('x', 'year')
  .encode('y', 'value')
  .axis('x', {
    labelAutoRotate: {
      type: 'rotate',
      /** 可选的旋转角度值 */
      optionalAngles: [0, 20, 45, 90],
    },
  })
  .scale('x', {
    range: [0, 1],
  })
  .scale('y', {
    domainMin: 0,
    nice: true,
  });

chart.line().label({
  text: 'value',
  style: {
    dx: -10,
    dy: -12,
  },
});

chart.point().style('fill', 'white').tooltip(false);

chart.render();