Relax the access validation constraint to ignore edits that don't change the existing value
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3071485. -->
Reported by: [larowlan](https://www.drupal.org/user/395439)
>>>
<p>When editing content the user has access to, they might receive a validation error from the parent field if they don't have access to edit the parent.</p>
<p>We need not show this if they're not changing the existing value.</p>
issue