当图例显示不全收缩时，g2图表库可能会出现图例文字渲染不全

[harrain]

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Reproduction link

https://github.com/harrain

Steps to reproduce

当图例显示不全收缩时，g2图表库可能会出现图例文字渲染不全；图例能全部显示，不会出现。

Environment	Info
g2	4.2.5
System	window10
Browser	Version 97.0.4692.99 (Official Build) (64-bit)
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