Form is not submitting but validating field individually

### What is the current behavior?

When I submit my form with the `handleSubmit`, nothing happen

### What is the expected behavior?

I expect to submit the form

### Form

Can anyone see a mistake here or is this a bug?

```jsx
import React, { useState, useRef } from 'react';
import { Field, Form } from 'react-final-form';
import { compose } from 'redux';
import TextField from '../../components/form/TextField';
import getAutoCompleteType from '../../components/form/utils';
import withTranslations from '../../core/translations/withTranslations';
import { useValidators } from '../../utils/form';
import Button from '../../ui/components/Button';

export default function ChangePasswordForm({
t,
setLocale,
locale,
}) {
const buttonRef = useRef();
const [showPassword, setShowPassword] = useState(false);

const {
oldPasswordValidator,
passwordValidator,
newPasswordValidator,
} = useValidators(t);

const _onSubmitPressed = async (values) => {
alert(JSON.stringify(values));
};

return (
alert('gi')}
validate={(values) => {
const errors = {};
if (values.password !== values.newPassword) {
errors.newPassword = t('utils.form.notIdenticalNewPassword');
}
return errors;
}}
render={({
handleSubmit,
form,
submitting,
pristine,
values,
}) => (



setShowPassword(!showPassword)}
/>


handleSubmit()}
/>

{t('changePasswordForm.submit')}


)}
/>
);
}
```

### What's your environment?

```jsx
"final-form": "^4.19.1",
"final-form-arrays": "^3.0.2",
"react-final-form": "^6.4.0",
"react-final-form-arrays": "^3.1.1",
"react-native-final-form-material": "^1.0.14",
```

- node 14
- chrome
- react 16.10.1
- react-native

### Other information

No log or error at all, tested in multiple page, it doesn't answer. I use react-final-form without trouble in many pages.