Bombed my slugs on copies and more

Nice tool, however, it disrupted my page slugs (404 errors) when associated with copies and clones in particular, and then other pages. I removed the copy/clone plugins first, no joy. When I removed the Nested Pages plugin all my slugs started working again. There’s some evidence this could have been associated with the clone plugins, however, the 404s occurred also with pages that I had organized with Nested Pages and were not associated with copies.