Wrong series representation when the data is updated using "setOption()"

[mahyrpt]

One-line summary [问题简述]

Wrong series representation when the data is updated using "setOption()"

Before the data update:

After the data update:

Version & Environment [版本及环境]

• ECharts version [ECharts 版本]: 4.1.0
• Browser version [浏览器类型和版本]: Google Chrome V.65.0.3325.181 (Official Build) (64-bit)
• OS Version [操作系统类型和版本]: Windows 10

Expected behaviour [期望结果]

The expected representation for the new data:

ECharts option [ECharts配置项]

https://jsfiddle.net/5up2z9xz/9/

Other comments [其他信息]

[stale]

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