>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3586693. --> Reported by: [justafish](https://www.drupal.org/user/161058) Related to !978 >>> <h3 id="overview">Overview</h3> <p>Make sure we're only installing modules once so we don't have to clear the container more than necessary. Also ensure that we only enable test extension visibility when necessary.</p>