Discriminated Union will not work if default value is specified

[yodakaEngineer]

Vue version

3.5.11

Link to minimal reproduction

https://play.vuejs.org/#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

Steps to reproduce

Please Check Comp.vue.

What is expected?

We will be able to use Discriminated Union with default value.

What is actually happening?

If you specify default value of props.type, all type information except props.type will be lost.

System Info

No response

Any additional comments?

This is similar to #9335