:*Update. I've solved the problem of the template. Jeanambr had failed to refresh the Zaira (Bellini) page so it was producing a double re-direct. Likewise, the template in all the other Bellini opera articles was linking to a redirect. I've now gone through and refreshed them all, so at least that problem is solved. But this page move was contrary to long established naming conventions for operas and I am very inclined to revert it, especially since it was done with no prior discussion whatsoever. The relevant discussion on the Opera Project talk page can be found here.