The following div is added by the VisualEditor in every reference:
<div id="KJWFkfRroD" class="donut-container" style="cursor: pointer; display: -webkit-inline-box; width: 0px; height: 0px;"></div>
See https://fr.wikipedia.org/w/index.php?title=R%C3%A9gime_amaigrissant&diff=146196702&oldid=145678887
It's currently reproduceable on that page with Chrome and Firefox.