ModelRef as watch source wrong type

[pikax]

Vue version

3.4

Link to minimal reproduction

https://play.vuejs.org/#eNqNUU1v2zAM/SuEL+2AxBqQnYKm6zb0sAH7wDbsJAzQbCZRJ1GCRDsBgvz30XI/vGwt6pP1SD6+93io3sRY9x1Wy+oiN8lGhozcRXCGNitdcdbVpSbrY0gMB9gZbrZwhHUKHs5k8ExTEygz+NCi+2Fch7CCFteW8OMAnR+Gl+kcL2FtXEY4vtCkqTCdP0zNoIfVJRw0AYyMRoj64akUyPfztaZx9EKNUkVYNatGbXNvYn2TA4mTwqFvC2JgObIOmCge3rraMse8VKppScZEhO1TTciKoldX0qZSR2w9ztvgrxb1q/qlam3mKVxj9vNfKewyJiHR1WyyRgnYY5onpBYTpueuPRmbrj4p/bN+2H6UkCQUzpLh2m5OImmCj9Zh+hzZSsZ/RWOcC7sPBeMk97jDmy02v/+D3+T96OlLwqJs4p9N2iCP5etvn3Av//dFuXnnbs/wSPEr5uC6QePY9rajVmRP+ora9+XCljbf8/WekfKdqUFoSaP0l3u8e8L6g9xFvbhP8fgH68wMIQ==

Steps to reproduce

import { watch } from 'vue'
const modelValue = defineModel({ default: false })

watch(modelValue, v => {
  const a = v
  //    ^? const a: (object | WatchSource<unknown>)[]
})

What is expected?

When using the result from defineModel on a watch is expected the value from the watch to have the correct type, in this case boolean

What is actually happening?

Not resolving the type correct

System Info

No response

Any additional comments?

No response