Sam Saffron 5d96c5cb84 FIX: set upper limit on clean up invalid users (10 years)
Note... this setting is quite new so I am not adding a migration here to
clean up history. Instead next time users save the setting it will complain.

Also explicitly call out that the value 0 is special and used to disable
the job.
2019-04-29 14:51:15 +10:00
..
2019-04-01 11:06:47 -04:00
2017-07-28 10:20:09 +09:00
2019-03-26 18:16:58 +08:00