I am currently running in to an issue where CategoryTree is showing a deleted page. I have tried numerous things like undeleting the page, removing the category, deleting the page again. Even tried adding the undeleted page back to the previous category only to show 2 ghosted items in the menu. When I remove the category for that page, the second one is removed but the first one remains.
It seems to be some type of a bug that I cannot figure out. I tried setting $wgCategoryTreeDisableCache = true but that didn't make any difference. Is there a way through a configuration parameter that I can clear out the entire DB cache and have it regenerated?
Any assistance would be great here