Why does order of props in useMutation matter?

[nerdoza]

I spent the better part of 2 hours trying to understand why the context value was missing all typing information and stumbled upon this message on the onMutation

Runs before the mutation is executed. It should be placed before mutation() for context to be inferred. It can return a value that will be passed to mutation, onSuccess, onError and onSettled. If it returns a promise, it will be awaited before running mutation.

Placing the onMutate property first in the object declaration solved the problem, but it definitely feels wrong and potentially flaky. Why does this need to be handled this way?

[posva]

This is a TypeScript limitation