AG> maintenance/cleanupTitles.php --fix Ahh.. thanks. Hmm, doesn't update RecentChanges... probably a feature, not a bug. OK, zapped it.
And how did you create it when it's illegal?
AG> Usually this happens when namespace names change, so that formerly it AG> didn't start with a namespace prefix but now it does. Since both AG> namespace names in this case are canonical and will always exist, I'm AG> not sure how it came to be.
Probably in our effort to stay abreast of the ever changing zh-tw translation strings.