Comment 12 for bug 1829823

@Christian, Thanks. Yes once this is accepted into xenial-proposed we can begin the backport to mitaka-proposed and make an exception in this case, once tested, to promote to mitaka-updates prior to xenial-updates promotion.

Note: This does leave a slight chance of regression on upgrade from mitaka-updates (trust) to xenial-updates if for some reason upstart is used on xenial.