The series.label.formatter function passes in data from the wrong series.

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Issue Details

The series.label.formatter function passes in data from the wrong series.

When I try to access the data passed back from the formatter, the data in the component is from series[dataIndex], rather than series[seriesIndex]. Even though the seriesIndex values and dataIndex values are correct, the data in the component is wrong. Notice how the labels don't match up with the formatted values.

Expected Behavior

The first digit of data is the series index, and the second digit is the data index. The formatter is supposed to pass in the series[seriesIndex] for the dataset. This should show 11, 12, 13 for the first graph. Instead, it's showing 11, 22, 13, since it's trying to access the wrong series.

Current Behavior

N/A

Online Example

https://codepen.io/kevinw0123/pen/exVGqv

...
series: [
  {
    label: 
      {
        show: 'true', 
        position: 'top', 
        formatter: function (component) {
          console.log(component);
          var i = component.dataIndex+1;
          return component.value[i];
        }
    }
  },
  ...

Topics

Anything Else We Need to Know

Environment

ECharts version；ECharts 版本: 4.2.0-rc.2
[ ] It happens only on certain browsers or operating systems. 对于特定浏览器或操作系统才会出现的问题，请提供相应环境信息：{BROWSER_VERSION_OR_OS_INFORMATION_HERE}

apache / echarts