As mentioned in a January 3rd message to this mailing list, all Git repositories must be migrated from the git-wip-us.apache.org URL to gitbox.apache.org. Moving to gitbox means we will get full write access on GitHub as well, and be able to close/merge pull requests and much more. If we don't coordinate with the ASF's Infra team, the Tapestry repository will be moved in February 7th at some unknown time, so I believe we should do it before at a known time.
-- Thiago