连接无法吸附，连接桩效果消失

[Niefee]

Describe the bug

https://x6.antv.antgroup.com/examples/showcase/practices/#er
用当前demo改，当连接箭头放到文字上面，连接到当前连接桩的吸附高亮效果消失，

Your Example Website or App

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Steps to Reproduce the Bug or Issue

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Expected behavior

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Screenshots or Videos

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Platform

• OS: [e.g. macOS, Windows, Linux]
• Browser: [e.g. Chrome, Safari, Firefox]
• Version: [e.g. 2.11.1]

Additional context

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[x6-bot]

👋 @Niefee

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[Niefee]

暂时使用'pointer-events': 'none',解决问题。

[x6-bot]

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