Edit form submission via edit/all posses issues based off required fields

Problem/Motivation

My wizard form skips pages based off of user answers. Think of it as paged based state, if on page 2 user answers no, they skip to page 5; and so on. This works out pretty well because on the page, the form validation is never triggered so I can keep fields required. One other feature to my form, an admin needs to come back and update a field with a value so we can track the record. Via edit/all, we can now edit any field on a wizard form because we load all the fields for the admin user to update/edit. The issue with this approach is now all required fields that may have been skipped are no required.

Proposed resolution

I tried the following approach but am still running into issues. Step 1, because the fields are all loading on one page we can have state logic set the required-ness of the fields. This will make them optional and we will not trigger Html5 validator. Unfortunately, there is still some server side validation that are checking if these fields are set. Using a hook_form_alter, I should be able to override the validation function so these are ignored.

  $url = Url::fromRoute('<current>')->toString();
    $pos = strpos($url, 'edit/all');
    if($pos) {
      $form['#validate'] = '';
    }

However, this does not work. The fields are still being required.

Remaining tasks

User interface changes

API changes

Data model changes