Wikimedia Bugzilla is closed!

When redirecting to an image description page, the redirect works but the image
is not show. That is, the resulting page shows the description page that is the
target of the redirect, but it does not show the image. Also, the list of pages
using the image is missing.

The same is also true if the page containing the redirect is itself an image
page. In this case, however, a list of pages using the images is shown, but the
*wrong* one, namely the usage-list for the image who's description page contains
the redirect. This is extremely confusing.

Redirects from one image description page to another may seem a bad thing at
first, but they do make sense in some cases, especially when an image was moved
(by re-uploadin it) to a different name. In such a case it would be useful to
have a redirect on the old description page (but no image associated with it!),
so that external links are not broken and the image is still found by google.
This is especially needed when an image is moved to the commons under a
different name and the local copy is deleted. In that case, the description page
(not the image) should be present under the old name, redirecting to the local
description page under the new name.

I guess this is an effect of the same bug that causes #786: the image name is
determined from the query-url *before* the redirect is resolved. But the
*effective* page name should be used to find the image file.