WP 6.2.2 – Shortcode generated html gets messed up with extra p tags

Hello,

Since WP 6.2.2 (which fixes 6.2.1’s issue with disabled block template shortcodes), if and only if I use a shortcode inside a block template, its generated html markup gets messed up with extra <p> elements.

EXAMPLE

Block template

<!-- wp:shortcode -->
[test]
<!-- /wp:shortcode -->

Shortcode

add_shortcode('test', function() {
  return '<ul>
            <li>
              <a href="#">
                <div class="card">
                  <div><h4>Test</h4></div>
                  <div><p>Test</p></div>
                </div>
              </a>
            </li>
            <li>
              <a href="#">
                <div class="card">
                  <div><h4>Test</h4></div>
                  <div><p>Test</p></div>
                </div>
              </a>
            </li>
          </ul>';
});

Result in page’s generated DOM

<ul>
  <li>
    <a href="#"></p>
      <div class="card">
        <div>
          <h4>Test</h4>
        </div>
        <div>
          <p>Test</p>
        </div>
      </div>
      <p>
    </a>
  </li>
  <li>
    <a href="#"></p>
      <div class="card">
        <div>
          <h4>Test</h4>
        </div>
        <div>
          <p>Test</p>
        </div>
      </div>
      <p>
    </a>
  </li>
</ul>

This doesn’t happen if I add the same shortcode inside a page’s content (through the Pages editor).