>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3214676. --> Reported by: [andypost](https://www.drupal.org/user/118908) >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p> Follow-up to <span class="drupalorg-gitlab-issue-link drupalorg-gitlab-link-wrapper"><a href="https://git.drupalcode.org/project/menu_link_attributes/-/work_items/3199781" class="drupalorg-gitlab-link">https://git.drupalcode.org/project/menu_link_attributes/-/work_items/3199781</a></span></p> <p>Empty attributes (class for example still saved into database)</p> <h4 id="summary-steps-reproduce">Steps to reproduce</h4> <pre>select * from menu_link_content_data<br><br>| id | revision_id | bundle&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | langcode | enabled | title&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | description | menu_name | link__uri&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | link__title | link__options&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | external | rediscover | weight | expanded | parent | changed&nbsp;&nbsp;&nbsp; | default_langcode | revision_translation_affected |<br>+----+-------------+-------------------+----------+---------+-----------------------+-------------+-----------+--------------------------------------+-------------+--------------------------------------------------------------------------------------+----------+------------+--------+----------+--------+------------+------------------+-------------------------------+<br>|&nbsp; 1 |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1 | menu_link_content | en&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1 | Test page&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | NULL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | footer&nbsp;&nbsp;&nbsp; | internal:/test-page&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | a:1:{s:10:"attributes";a:2:{s:5:"class";a:1:{i:0;s:0:"";}s:3:"rel";s:8:"nofollow";}} |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0 |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1 |&nbsp;&nbsp;&nbsp; -50 |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0 | NULL&nbsp;&nbsp; | 1621397169 |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1 |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1 |</pre><h3 id="summary-proposed-resolution">Proposed resolution</h3> <p>Clean-up array attributes properly</p> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <p>review/commit</p> <h3 id="summary-ui-changes">User interface changes</h3> <p>no</p> <h3 id="summary-api-changes">API changes</h3> <p>no</p> <h3 id="summary-data-model-changes">Data model changes</h3> <p>no</p>