Description
In AW integration the redirects given by secondary titles are handled in AbstractPageRenderingHandler::onShowMissingArticle:
- when a title exists as opted-in to an AW qid, if it's a secondary title, it redirects to the primary via awredirectedfrom
- the primary page shows "(Redirected from <secondary title>)" default MW notice on top, with a link to go to the initial title with redirect=no
- AbstractPageRenderingHandler::onShowMissingArticle should be able to render the page with the original title whenever it encounters redirect=no
Completion checklist
- Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist