Disable caching of registration form if showing email address for first member
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3583183. -->
Reported by: [lostcarpark](https://www.drupal.org/user/346773)
Related to !35
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>On Eastercon 2028 site, registration form is caching for logged in users causing previously registered member's email address to display.</p>
<h4 id="summary-steps-reproduce">Steps to reproduce</h4>
<p>Log in using verify_email module. Visit registration page. For some users, a previous member email was showing.</p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>If user logged in and showing email address as markup, set cache max age to disable caching of form.</p>
<h3 id="summary-remaining-tasks">Remaining tasks</h3>
<p>If showing logged in user email address, disable caching for reg form.</p>
<h3 id="summary-ui-changes">User interface changes</h3>
<h3 id="summary-api-changes">API changes</h3>
<h3 id="summary-data-model-changes">Data model changes</h3>
issue