defineComponent props sets the default property value, `props.xx` may still be undefined

[jevin98]

Vue version

3.5.13

Link to minimal reproduction

https://play.vuejs.org/#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

Steps to reproduce

1. click Comp.tsx file

What is expected?

props.size Shouldn't the type be number?

What is actually happening?

System Info

Any additional comments?

No response