[Bug] 当有子列的时候，整个表格的表头单元格内移动会频繁触发mouseenter_cell事件，包括mouseenter_leave事件
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bug
- Dominant language
- TypeScript
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- Merged PRs (30d)
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Description
Version
1.19.4
Link to Minimal Reproduction
https://visactor.io/vtable/demo/basic-functionality/list-table-header-group
Steps to Reproduce
2025-9-1发现的bug
当有子列的时候，整个表格的表头单元格内移动会频繁触发mouseenter_cell事件，包括mouseenter_leave事件
###官方demo的录屏效果
图片：
视频如下：
https://github.com/user-attachments/assets/695ea4fa-91bf-4d6c-b1d7-974123089ad2
影响
实现自定义tooltip的时候，移动到表头，会频繁触发，没法实现tooltip
Current Behavior
帮忙看看是不是bug
Expected Behavior
谢谢
Environment
- OS:
- Browser:
- Framework:
Any additional comments?
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked list-table header-group demo and reproduce pointer movement within grouped header cells while observing mouseenter_cell and mouseenter_leave. Trace the header hover event handling from that demo, then verify that movement inside a header no longer repeatedly triggers those events and that a custom tooltip can remain usable.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- data-visualization, frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100