Duplicated help content in module Symfony form

[rboada]

Hello,

I'm developing a module that allows to download products according to filters selected by the user.

The development is done with Symfony, and I have a problem with the "help" property of a form input, specifically the input to display the category tree.

This is the current code:

/**
 * Build the form for download template with filters
 *
 * @param FormBuilderInterface $builder
 * @param array $options
 *
 * @return void
 */
public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('id_categories', CategoryChoiceTreeType::class, [
            'required' => false,
            'label' => $this->translator->trans('Category', [], 'Admin.Global'),
            'multiple' => true,
            'choices_tree' => $this->getNestedCategories(),
            'help' => $this->translator->trans(
                'You can select one or more categories to filter the products.',
                [],
                'Modules.Mymodule.Admin'
            ),
        ])
        ->add('from', DateType::class, [
            'required' => false,
            'label' => $this->translator->trans('From', [], 'Admin.Global'),
            'widget' => 'single_text',
            'format' => 'yyyy-MM-dd',
            'help' => $this->translator->trans(
                'Filter products added from this date.',
                [],
                'Modules.Mymodule.Admin'
            ),
        ])
        ->add('to', DateType::class, [
            'required' => false,
            'label' => $this->translator->trans('To', [], 'Admin.Global'),
            'widget' => 'single_text',
            'format' => 'yyyy-MM-dd',
            'help' => $this->translator->trans(
                'Filter products added to this date.',
                [],
                'Modules.Mymodule.Admin'
            ),
        ])
        ->add('filters_info', CustomContentType::class, [
            'required' => false,
            'template' => '@Modules/mymodule/views/templates/admin/filters-info.html.twig',
            'data' => [],
        ])
    ;
}

This is how the form looks in PrestaShop 1.7.8.11:

And this is what the form looks like in PrestaShop 8.1.5:

For some reason the help text is being duplicated, but only with the CategoryChoiceTreeType.

Can you guys help me?

Thanks.