"systemctl disable snapd.refresh.timer" insufficient to disable auto-refresh?

Hi!

I’m seeing refresh activity in journalctl -b even after doing
$ sudo systemctl disable snapd.refresh.timer
per https://lists.ubuntu.com/archives/snapcraft/2017-January/002320.html

The timer’s disabled, I think:

$ sudo systemctl status snapd.refresh.timer
● snapd.refresh.timer - Timer to automatically refresh installed snaps
   Loaded: loaded (/lib/systemd/system/snapd.refresh.timer; disabled;
vendor preset: enabled)
   Active: inactive (dead)

$ sudo systemctl list-timers --all
NEXT                         LEFT     LAST
PASSED UNIT                         ACTIVATES
Thu 2017-07-20 08:25:52 UTC  15h left Wed 2017-07-19 08:25:52 UTC  8h
ago systemd-tmpfiles-clean.timer systemd-tmpfiles-clean.service

1 timers listed.

And yet journalctl -b shows:

Jul 17 08:16:07 rbb-ubu1604pi3-1 /usr/lib/snapd/snapd[1284]:
snapmgr.go:504: DEBUG: Next refresh scheduled for 2017-07-17
08:16:07.216416863 +0000 UTC.
Jul 17 08:16:09 rbb-ubu1604pi3-1 /usr/lib/snapd/snapd[1284]:
snapmgr.go:422: No snaps to auto-refresh found
Jul 17 08:16:09 rbb-ubu1604pi3-1 snapd[1284]: 2017/07/17
08:16:09.885894 snapmgr.go:422: No snaps to auto-refresh found
Jul 17 08:19:07 rbb-ubu1604pi3-1 /usr/lib/snapd/snapd[1284]:
snapmgr.go:504: DEBUG: Next refresh scheduled for 2017-07-17
15:45:20.863477548 +0000 UTC.
Jul 17 15:49:09 rbb-ubu1604pi3-1 /usr/lib/snapd/snapd[1284]:
snapmgr.go:422: No snaps to auto-refresh found
Jul 17 15:49:09 rbb-ubu1604pi3-1 snapd[1284]: 2017/07/17
15:49:09.510882 snapmgr.go:422: No snaps to auto-refresh found
Jul 17 15:54:07 rbb-ubu1604pi3-1 /usr/lib/snapd/snapd[1284]:
snapmgr.go:504: DEBUG: Next refresh scheduled for 2017-07-17
21:52:48.306649632 +0000 UTC.

(I probably shouldn’t be disabling autorefresh, but that’s a matter
for another thread.)

The thread below covers this i think (with links to multiple subthreads with implementation details) … Disabling automatic refresh for snap from store