[Bug] toolTips can't show in custom type
Open
bug
en
topic: custom
- Dominant language
- TypeScript
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Description
### Version
4.9.0
### Link to Minimal Reproduction
none
### Steps to Reproduce

1 Detail code in pic1 and pic2.
2 For example, when I push my figure on start tag(label), toolTips can't show. when I push my figure on dashed line, toolTips can show. I think the two parts are combined.
### Current Behavior
When I push my figure on start tag(label), toolTips can't show.
### Expected Behavior
When I push my figure on start tag, toolTips can show.
### Environment
```markdown
- OS:IOS 16.0
- Browser:
- Framework:Vue@2
```
### Any additional comments?
_No response_
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