Continue Shopping with i18n duplicates language prefix

Do you have a link to a site that demonstrates this problem, or can you provide some more details about the URL that you came from, the URL that is redirect to, and the URL that you expect?

The problem is caused by $_SESSION['uc_cart_last_url'] =request_path() in uc_cart.module.
request_path() includes path prefix language code (you can see it in database table sessions) and that is why language prefix is duplicated in path.
I fixed it temporarliy in very ugly way : substr(request_path(), 3); (my language prefix is always 2 letters)
I hope it will help somebody.

Fixing title

See also #1466372: 404 Page not found when Add to cart redirect is set to <none>

From a quick search of the issue queues, there are many similar issues with i18n and double prefixed paths in other modules.

A reasonably robust approach seems to be in this patch: http://drupal.org/files/issues/path_redirect-language-prefix-249432.patch
(from http://drupal.org/node/249432#comment-1215450)

current_path() seems to work better than request_path().

Committed #7