Follow-up from T230040 & T230067: The media-list object's title property still contains the original (un-redirected) file page title even after the image sources have been resolved, for example.
{"title":"File:Olympic_rings.svg","section_id":0,"type":"image","showInGallery":true,"srcset":[{"src":"//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Olympic_rings_without_rims.svg/320px-Olympic_rings_without_rims.svg.png","scale":"1x"}]}
title should also be resolved.