There is a bug in the Web visual editor of Wikipedia. What you see is not what you get.
I go to http://fr.wikipedia.org/w/index.php?title=plan_du_métro_de_Paris&oldid=120863537
I click modifier, to edit the article.
I get the Web visual editor of Wikipedia.
I click the references.
I click Modifier, to edit the template call.
In the param colonnes, there is 2. I delete the value.
I click Appliquer les modifications.
Expected result: The refs are now displayed on one column.
Observed result: The refs have disappeared!
It would be nice to fix this bug. Thank you.
I have Safari, with the reading list open, on an iPad, in landscape, on iOS 8.2.