Radio组件 当children===0时无法显示

[HQidea]

Environment(required)

• antd version: 1.8.0 - 1.11.6
• OS and its version: all
• Browser and its version: all

What did you do? Please provide steps to re-produce your problem.

<Radio
  key={key}
  value={key}
>
  {0}
</Radio>

What do you expected?

正常显示 0

What happen?

    return (
      <label className={wrapperClassString} style={style}>
        <RcRadio {...this.props} className={classString} style={null} children={null} />
        {children ? <span>{children}</span> : null}
      </label>
    );

这里的children判断不严谨，导致child === 0的时候会被认为没有children

link: https://github.com/ant-design/ant-design/blob/1.x-stable/components/radio/radio.jsx#L29

Re-producible online demo

http://codepen.io/anon/pen/egXJGe?editors=001

[afc163]

来个 PR 发到 master 吧~

另外 antd@1.x 不会维护了。

[lock]

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