>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3338386. --> Reported by: [d34dman](https://www.drupal.org/user/751698) Related to !22 >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p>It is possible to select multiple values even for fields which allow only 1 value. This leads to a false assumption from users that they can add more values and results in a validation error after submission. </p> <h4 id="summary-steps-reproduce">Steps to reproduce</h4> <p>Try to add more users into "Author" fields on Node forms and save.</p> <h3 id="summary-proposed-resolution">Proposed resolution</h3> <p>Disallow adding more terms once cardinality limit is reached. This would force the user would have to delete the items and then add a new one to replace.</p> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <p>--</p> <h3 id="summary-ui-changes">User interface changes</h3> <p>--</p> <h3 id="summary-api-changes">API changes</h3> <p>--</p> <h3 id="summary-data-model-changes">Data model changes</h3> <p>--</p>