[table] 任意列配置了列宽之后，选中列宽度会进行缩放变大

[dabuside]

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Reproduction link

playground link

Steps to reproduce

所有列均不配置宽度的情况下，选中列宽度为40px，其余列按一定比例分享宽度 任意列配置了列宽之后，选中列宽度可能超过40px

What is expected?

选中列宽度保持40px

What is actually happening?

选中列宽度会变大

Environment Info

Any additional comments? (optional)

特定列宽度可以固定（选中列、操作列等等）