Formik field names are passed as props to story

[ekabolotina]

Consider the example:

import { Meta, Story } from '@storybook/react';
import { DecoratorParams, withFormik } from '@bbbtech/storybook-formik';
import { SampleComponent, SampleComponentProps } from '.';

const meta: Meta<SampleComponentProps> = {
    title: 'SampleComponent',
    component: SampleComponent,
    decorators: [withFormik],
    parameters: {
        formik: {
            initialValues: {
                firstName: '',
                lastName: '',
            },
        },
    },
};

const Template: Story<SampleComponentProps> = (props) => <OkvedInput { ...props } />;
//                                             ^^^^^ 
//                        these props contain keys `firstName` and `lastName`

export const Default = Template.bind({});

The problem is that props passed to the Story contain keys from initialValues configured in parameters. This is very strange behavior.