Last modified: 2014-09-15 18:39:18 UTC
Look at https://fr.wikipedia.org/w/index.php?curid=1265106&diff=106479359&oldid=106473232 to find the addition of hidden comments like this: <!--[if !supportLists]-->- Mr. Google says that this is caused by pasting contents from MS Word into (for example) e-mail messages.