Fix update notifications

* Python 2 incompatibility
* Handle actual update, .remote_head_rev needs to be updated
  in that case
2 jobs for master in 13 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Test
passed job-flake8-2 #994862

00:00:13

passed job-flake8-3 #994861

00:00:13