Reset: true doesn't work in modular contact page

[01Kuzma]

Hi!
I have a one page website with modular pages. One of its contain a contact form.

It works fine, but the problem is that the reset: true option doesn’t work after submit. The sent data is left in the form and it could be sent once more.
I’ve tried leaving only minimum code parts with two fields, but this doesn’t make any sense.
Grav CMS 1.7.30
Form v5.1.6

pages\01.home contains modular.lt.md with:

content:
    items: '@self.modular'

The form is placed in the contact.lt.md:

---
title: 'Title'
menu: kontaktai
visible: true
cache_enable: false
form:
    name: kontaktu-forma
    template: form-messages
    fields:
        -
            name: email
            label: false
            placeholder: 'e.mail'
            type: email
            outerclasses: form-field
            classes: full-width
        -
            name: my-file
            label: 'Add files'
            type: file
            multiple: true
            limit: 5
            filesize: 6
            destination: user/data/files
            accept:
                - application/pdf
                - application/x-pdf
                - 'image/*'
        -
            name: telephone
            label: false
            placeholder: Telephone
            type: tel
            validate:
                required: true
        -
            name: message
            label: false
            placeholder: 'Info'
            type: textarea
            outerclasses: form-field
            classes: full-width
            rows: null
    buttons:
        -
            type: submit
            value: Submit
            outerclasses: form-field
            classes: 'full-width btn--primary'
    process:
        -
            email:
                from:
                    - '{{ form.value.email|e }}'
                to:
                    - '{{ config.plugins.email.to }}'
                subject: '[Message from] {{ form.value.name|e }}'
                body: '{% include ''forms/data.html.twig'' %}'
                attachments:
                    - my-file
        -
            reset: true					
        -
            message: 'Thank you message'		
metadata:
    'og:url': 'url'
    'og:type': website
    'og:title': 'title'
    'og:author': author
addressTitle: 'Title'
published: true
aura:
    pagetype: website
media_order: '1.jpg,2.jpg'
---

Form text

Tried with quark theme but after submission the same code redirects to a blank page with "thank you" message

[01Kuzma]

The problem was in template: form-messages