Vue - Official extension or vue-tsc version

3.0.1

VSCode version

1.101.2

Vue version

3.4.32

TypeScript version

5.8.3

System Info

System:
    OS: Linux 5.15 Ubuntu 22.04.5 LTS 22.04.5 LTS (Jammy Jellyfish)
    CPU: (16) x64 11th Gen Intel(R) Core(TM) i7-11850H @ 2.50GHz
    Memory: 111.16 GB / 125.50 GB
    Container: Yes
    Shell: 5.1.16 - /bin/bash
  Binaries:
    Node: 20.16.0 - ~/.nvm/versions/node/v20.16.0/bin/node
    npm: 10.8.1 - ~/.nvm/versions/node/v20.16.0/bin/npm
  Browsers:
    Chromium: 138.0.7204.49

package.json dependencies

Steps to reproduce

Having a minimal generic component:

<script setup lang="ts" generic="T extends string | number">
  import { ref } from 'vue';

  const x = ref<Set<T>>(new Set());
</script>

The type of x is infered to: Ref<Set<UnwrapRefSimple<T>> & Omit<Set<T>, keyof Set<any>>>
The UnwrapRef is unexpected and leads to typ errors when using the value

What is expected?

When omiting the type information i get Ref<Set<unknown> & Omit<Set<unknown>, keyof Set<any>>>
So the expected type for x should be Ref<Set<T> & Omit<Set<T>, keyof Set<any>>>

What is actually happening?

The wrong type is inferred

Link to minimal reproduction

No response

Any additional comments?

No response