Results 1 issues of 6+

### Version 5.0.0 ### Reproduction link [https://echarts.apache.org/next/examples/zh/editor.html?c=graph](https://echarts.apache.org/next/examples/zh/editor.html?c=graph) ### Steps to reproduce ![image](https://user-images.githubusercontent.com/3294399/103051222-47cc8800-45d1-11eb-8f13-1452c841a2b9.png) 鼠标放在 **类目2** 上,节点淡出显示对象为其它类目节点对象 ### What is expected? 关联类目 淡出显示到正确对象上。 ### What is actually happening? 鼠标放在 **类目2** 上,淡出显示对象为其它类目对象

bug
topic: graph
topic: state