鼠标滚动后，Legend高亮效果依然存在 #3168

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Reproduction link

https://antv-g2.gitee.io/zh/examples/interaction/component#legend-highlight

Steps to reproduce

1、鼠标悬浮在某个legend上，悬浮效果正常展现； 2、鼠标直接滚动，此时legend悬浮还在，

鼠标滚动后按理应该恢复图表默认展示

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