🐛 [BUG] Pie/Column/Bar not render correctly when field name contains asterisk character

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🐛 Bug description [Please make everyone to understand it]

Pie/Column/Bar not render correctly when field name contains asterisk character

Please provide a link by forking these links G2Plot or GitHub repo, a minimal reproduction.

• Required Link to minimal reproduction:

https://codesandbox.io/s/serene-nightingale-tpzq01?file=/index.ts

📷 Step to reproduce

🏞 Expected result

🚑 Any additional [like screenshots]

• G2Plot Version:
• Platform:

[hustcc]

* 在 G2 4.x 中属于是关键词，在代码中会用于分割：

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

const chart = new Chart();

chart
  .interval()
  .position('x*y') // 👈🏻 这里

chart.render();

在 4.x 中无解，这个在 G2 5.0 中默认已经解决了。