[GitHub] [echarts] chenyue2 opened a new issue #15725: legend点击事件，重新设置markPoint的位置后，原来的mmarkPoint点仍然存在

[GitBox]

chenyue2 opened a new issue #15725:
URL: https://github.com/apache/echarts/issues/15725


   **Version**
   
   5.2.0
   
   **Reproduction link**
   
   http://jsrun.net/eLTKp/edit
   
   **Steps to reproduce**
   
   legend响应"legendselectchanged"事件时重新设置series的markPoint的位置，当该曲线再次展示时，原来的标记点仍然存在。
   
   **What is expected?**
   
   响应"legendselectchanged"事件重新设置的标记点显示在该曲线上。
   
![echarts_20210915104755](https://user-images.githubusercontent.com/90738315/133362169-45e615d8-8a7f-41f9-acdf-03e5a1617dd7.png)
   **What is actually happening?**
   
   响应"legendselectchanged"事件之前的标记点和响应事件重新设置的标记点都在该曲线上。
   
![echarts_20210915104824](https://user-images.githubusercontent.com/90738315/133362020-fb518d5b-28d4-46f6-adb6-0bea1b572c3e.png)
   


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