🐛 [BUG]饼图名称相同 , 不会显示label ,v1版本好像没有这个问题

[xiyeeee]

🐛 Bug description [Please make everyone to understand it]

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

• Required Link to minimal reproduction:

📷 Step to reproduce

🏞 Expected result

🚑 Any additional [like screenshots]

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• Platform: