Yesterday I was working on my site and at one point I decided to change a top-level page to be a child of another top-level page. Shortly thereafter I thought the better of it and changed it back to a top-level page. Since then, visiting said page results in an eternal redirect loop.
As I understand, recent versions of WP have an auto-redirect feature to reduce redundant permalinks by redirecting an old permalink to its new URL if the permalink has changed. That's a great feature but my guess is that it is causing the original URL to redirect to my modified URL, which is redirecting to the second modification, which happens to be the same as the original URL and so redirects again, etc ad infinitum.
I don't know how to manually edit the database to remove the rogue redirects, but I'll look into it today.
I thought it best to post here before opening a ticket to see if anyone else could confirm that this is a real bug?
(Also it would be nice to have WP2.7 as an option in the Version dropdown of this New Topic form!)