I have enabled webform module on a Drupal 8 installation.

For some reason, there are default webform templates such as "Donation" and "Contact Us" which have their `elements` values translated in the translation UI at **/admin/config/regional/translate**. The problem is that some webforms templates have HTML markup in their `elements` value like the following:

        '#prefix': '<div class="container-inline">'
        '#suffix': '</div>'

This will prevent saving any value, drupal telling the user that there are translations with invalid HTML tags:

> The submitted string contains disallowed HTML: *information: '#title': 'Your Information' '#type': fieldset first_name: '#title': 'First Name' '#type': textfield '#required': true last_name*
> 
> etc...

Regarding this issue, I have a few questions: 

 1. what actions trigger the `elements` value availability in this interface? On install, on config save...?
 2. do the **webform** module really uses this interface to translate the content of the forms?
 3. and if yes, am I missing a module or something to make it work?
 4. and if not, should this be considered as a bug? The closest issue I have found is this one: https://www.drupal.org/project/webform/issues/2913548

It looks like this is this template: https://cgit.drupalcode.org/webform/tree/modules/webform_templates/config/install/webform.webform.template_job_application.yml?id=a988217057ed5ba842a3722de01f2d07df59e5e1