Comment 16 for bug 1596629

Verified on yakkety:

$ apt-cache policy snapd
snapd:
  Installed: 2.17.1+16.10ubuntu1
  Candidate: 2.17.1+16.10ubuntu1
  Version table:
 *** 2.17.1+16.10ubuntu1 500
        500 http://archive.ubuntu.com/ubuntu yakkety-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     2.16+16.10ubuntu1.2 500
        500 http://es.archive.ubuntu.com/ubuntu yakkety-updates/main amd64 Packages
     2.16+16.10ubuntu1 500
        500 http://es.archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
$ sudo snap install --candidate spread-cron
spread-cron (candidate) 1.0 from 'canonical' installed
$ sudo snap set spread-cron username=blabla
$