Are language-symmetrical paths possible for v.3? (e.g. "it/pagename" and "en/pagename")

Issue Summary

If you have a bilingual site, it would be logical (and a good practice) to have, say, "en/contacts" and "it/contacts" URLs for the contacts page in English and Italian. With Localizer v.1, one could do it by manually specifying "en/contacts" and "it/contacts" as path aliases for the two nodes.
With Localizer v.3, the language prefix is added automatically, thus transforming the old aliases to "en/en/contacts" and "it/it/contacts". However, you cannot set "contacts" as a path alias for both nodes since Drupal does not allow entering identical aliases for two nodes.
Is it possible to build language-symmetrical URLs for v.3?
Thank you!