$ rvm get branch /bugfix/issue-3519
Downloading https://get.rvm.io
No GPG software exists to validate rvm-installer, skipping.
Downloading https://github.com/rvm/rvm/archive/bugfix/issue-3519.tar.gz
curl: (22) The requested URL returned error: 404 Not Found

Could not download 'https://github.com/rvm/rvm/archive/bugfix/issue-3519.tar.gz'.
  curl returned status '22'.

Downloading https://bitbucket.org/mpapis/rvm/get/bugfix/issue-3519.tar.gz
curl: (22) The requested URL returned error: 404 Not Found

Could not download 'https://bitbucket.org/mpapis/rvm/get/bugfix/issue-3519.tar.gz'.
  curl returned status '22'.

Could not update RVM, get some help at #rvm IRC channel at freenode servers.