redux-form - Affecting the whole record value from a CustomField in admin-on-rest

Question

I have a Edit component in an admin-on-rest's app which internally uses ReduxForm and the code looks like this:

<Edit {...props} >
    <CustomField />
    <TextInput source="title" />
</Edit>

I am wondering how is it possible to change title from CustomField without persisting it on the on the server?