Unlike T74048: [Regression?] VE corruption issue(?) moving pre-existing categories to the middle of the page, not caused by use of Safari:
https://fr.wikipedia.org/w/index.php?title=Liste_des_op%C3%A9rateurs_de_r%C3%A9seau_mobile_en_Europe&diff=112473699&oldid=112316892
I can't reproduce this at all. Maybe this was a RESTbase migration hiccup?