After setting the minimum value of Y-axis min, the data is stacked and the plot is missing

[simmonfang]

Version

4.9.0

Steps to reproduce

[{type:"line",stack:"a",areaStyle:{color:red,origin:'start'},data:[22,22,22,22,22]},{type:"line",stack:"a",areaStyle:{color:blue,origin:'auto'},data:[0,0,0,22,22]}]
手动设置yAxis.min = 10之后 就出现上面的问题

What is expected?

堆叠趋势图stack正常拼接

What is actually happening?

堆叠趋势图stack没有正常拼接，出现背景缺失

---

https://user-images.githubusercontent.com/61592598/120740545-f8966600-c525-11eb-8a4f-545389b61605.png
https://user-images.githubusercontent.com/61592598/120740584-0b109f80-c526-11eb-8d16-738bdd51df3b.png

[echarts-bot]

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[echarts-bot]

@simmonfang It seems you are not using English, I've helped translate the content automatically. To make your issue understood by more people, we'd like to suggest using English next time. 🤗

TRANSLATED

TITLE

After setting the minimum value of Y-axis min, the data is stacked and the plot is missing

BODY

Version

4.9.0

Steps to reproduce

[{type:"line",stack:"a",areaStyle:{color:red,origin:'start'},data:[22,22,22,22,22]},{type:"line",stack:"a",areaStyle:{color:blue,origin:'auto'},data:[0,0,0,22,22]}]
The above problem occurs after manually setting yAxis.min to 10

What is expected?

Stack trend chart stacking for normal stitching

What is actually happening?

Stacked trend chart stacks are not stitched properly and have a missing background

---

https://user-images.githubusercontent.com/61592598/120740545-f8966600-c525-11eb-8a4f-545389b61605.png
https://user-images.githubusercontent.com/61592598/120740584-0b109f80-c526-11eb-8d16-738bdd51df3b.png

[simmonfang]

How to solve this problem

[susiwen8]

Related to #9317