div elements are removed by htmlcleaner when inside a dl element

Our html cleaner is automatically cleaning the div element that are present inside a dl element, for example:

<dl>
  <div>
     <dt>something</dt>
  </div>

is transformed to remove the div.
This should not happen since the div elements are authorized inside a dl, see: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dl