arrays returned from `useAsyncData` and `useFetch` aren't typed properly

[danielroe]

Environment

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• Operating System: Darwin
• Node Version: v14.17.3
• Nuxt Version: 3-3.0.0
• Package Manager: Yarn
• Bundler: Webpack
• User Config: -
• Runtime Modules: -
• Build Modules: -

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Describe the bug

If an array type is provided, it gets improperly converted into a Pick type.

For example:

const { data } = useFetch<string, User[]>() // ...
// data is now typed as
Pick<User[], string>
// which is an impossible type

Reproduction

const { data } = useFetch<string, User[]>('test')
// this will give a type error
data.value.map(() => true)

Additional context

No response

Logs

No response