openpgp header fails on parsing url
2015-02-09 16:13:29,985 - DEBUG - L#657 : leap.mail.incoming.service:_extract_openpgp_header() - There is no url on the OpenPGP header: id=CB75081A468D5963; url="https://cdev.bitmask.net/key/test_bundle_mail_001"; preference="signencrypt"
(from redmine: created on 2015-02-09)