Docs: Optimistic Updates issue

Hi everyone! I have an issue with optimistic docs example.

In docs it says the following:

To do this, useMutation's onMutate handler option allows you to return a value that will later be passed to both onError and onSettled handlers as the last argument. In most cases, it is most useful to pass a rollback function.

To do this, useMutation's onMutate handler option allows you to return a value that will later be passed to both onError and onSettled handlers as the last argument. In most cases, it is most useful to pass a rollback function.

To do this, useMutation's onMutate handler option allows you to return a value that will later be passed to both onError and onSettled handlers as the last argument. In most cases, it is most useful to pass a rollback function.

To do this, useMutation's onMutate handler option allows you to return a value that will later be passed to both onError and onSettled handlers as the last argument. In most cases, it is most useful to pass a rollback function.

I read it as if I return data in

onMutate function

onMutate function

onMutate function

onMutate function,

onMutateResult

onMutateResult

onMutateResult

onMutateResult will always be defined in

onError | onSuccess | onSettled functions

onError | onSuccess | onSettled functions

onError | onSuccess | onSettled functions

onError | onSuccess | onSettled functions. And docs example suggests it also should work that way (first screenshot). But my result always can be undefined in every function (screenshot 2 and 3).

Would appreciate any help and clarification on this issue, thanks!

Docs: Optimistic Updates issue

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