issue: Form validation behavior changes when the isValid form state is subscribed about react-hook-form HOT 4 OPEN

We have the same issue here.
I prepared the following codesandbox to show it: https://codesandbox.io/p/sandbox/trusting-elion-36hycc?file=%2Fsrc%2FApp.tsx%3A6%2C9

As you can see, if you extract isValid from the formState or from the useFormState hook, the validation function will be invoked also onBlur, even if the mode is explicitly configured as onChange.

Using a constant value, instead, behaves as expected (but of course, we lose the validation utility).

@bluebill1049 are we missing something, or is it a regression introduced recently?

from react-hook-form.

So do you have a suggestion to properly validate the form using an API only onChange?

from react-hook-form.

As you can see, if you extract isValid from the formState or from the useFormState hook, the validation function will be invoked also onBlur, even if the mode is explicitly configured as onChange.

isValid will run onChange, onBlur and onSubmit to check the validity of the form.

from react-hook-form.

Ping @bluebill1049

from react-hook-form.