Board Thread:Support Requests - Designing Your Wiki/@comment-5612182-20121226201028/@comment-3508190-20121229125027

Purging no longer helps. The problem is the ResourceLoader. It caches everything: site + user CSS and site + user JavaScript. Everything is cached for a maximum of ten minutes. Sometimes you might be lucky and don't have to wait the full ten minutes, but Murphy's Law says you're not :)

What you could do is save your changes to a temporary file and import from the console with  and/or