ralph-cheng

4.0.2里当dataZoom打开并且series为空时，setOption notMerge抛出异常

8

### One-line summary [问题简述] 更新已有chart数据时，调用`echartInstance.setOptions({dataZoom: [{show: true}], series: []}, true)`抛出异常。 ``` echarts.min.js:1 Uncaught TypeError: Cannot read property 'getDataPercentWindow' of undefined at echarts.min.js:1 at Array.forEach () at c (echarts.min.js:1) at i.eachComponent...