🐛 [BUG] 散点图点标签重叠 自动隐藏属性不生效，autoHide: true,

[db-shuai]

🐛 Bug description [Please make everyone to understand it]

Please provide a link by forking these links G2Plot or GitHub repo, a minimal reproduction.

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📷 Step to reproduce

🏞 Expected result

🚑 Any additional [like screenshots]

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