Dropdown组件绝对定位的top和left偏移量 有时候计算错误

[rose-sun]

trafficstars

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Version

2.2.6

Environment

vue 3.2.6

Reproduction link

Steps to reproduce

我设置了Dropdown的getPopupContainer属性为其父元素，没有设置placement属性，让其自动计算朝向。 正常情况下，bottomLeft的绝对偏移量应该是 left: -1px; top: 28px左右，Dropdown能正常显示在bottomLeft方位； 但是有 1/5 的概率，计算出来的left: 277px; top: -550px，导致Dropdown框溢出容器，根本看不到了。 我是这么写的： <a-dropdown :trigger="['hover']" :mouseEnterDelay="0.3" :mouseLeaveDelay="0.2" :getPopupContainer="(triggerNode) =>triggerNode.parentElement">

What is expected?

期望能正常计算其偏移量，不要偏移过大，导致看不到框

What is actually happening?

多次尝试，有1/5概率Dropdown组件的偏移量计算错误

[qhl123456]

getPopupContainer多加几个parentNode试试，我偶尔也会这样，直接定位到最最最外层的元素上，有时候父元素的宽度计算的有问题

[github-actions[bot]]

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