I am thinking of a table containing for each category page title the
cat_id it refers to. When updating a page, a query joining that table
and the category table could retrieve A) the cat_id needed to update
category_links B) possibly the cat_title to display the "proper" links
at the bottom of the article.
To clarify a bit my point, I'm saying that when Category:A redirects
to Category:B, articles belonging to A and B should point to the same
cat_id
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Nicolas Dumazet — NicDumZ [ nIk.d̪ymz ]