F2 动画插值比较对非数字不生效

[zengyue]

import F2 from '@antv/f2';

const data = [{
  date: '2017-06-05',
  value: 116
}, {
  date: '2017-06-06',
  value: 129
}, {
  date: '2017-06-07',
  value: 135
}, {
  date: '2017-06-08',
  value: 86
}, {
  date: '2017-06-09',
  value: 73
}, {
  date: '2017-06-10',
  value: 85
}, {
  date: '2017-06-11',
  value: 73
}, {
  date: '2017-06-12',
  value: 68
}];

const chart = new F2.Chart({
  id: 'container',
  pixelRatio: window.devicePixelRatio
});

chart.source(data, {
  value: {
    tickCount: 5,
    min: 0
  },
  date: {
    type: 'timeCat',
    range: [0, 1],
    tickCount: 3
  }
});
chart.tooltip({
  custom: true,
  showXTip: true,
  showYTip: true,
  snap: true,
  crosshairsType: 'xy',
  crosshairsStyle: {
    lineDash: [2]
  }
});
chart.axis('date', {
  label: function label(text, index, total) {
    const textCfg = {};
    if (index === 0) {
      textCfg.textAlign = 'left';
    } else if (index === total - 1) {
      textCfg.textAlign = 'right';
    }
    return textCfg;
  }
});
const line = chart.line().position('date*value');
chart.render();
setTimeout(() => {
  line.shape('smooth');
  // 直接调用render可以绘制，但是之前的没有清除
  // chart.render();
  // 使用repaint没有变化（原因就是animation detail diff的问题）
  chart.repaint();
}, 1000)