The "test-add-alerts" command:
Usage: fossil test-add-alerts [OPTIONS] EVENTID ...
Add one or more events to the pending_alert queue. Use this
command during testing to force email notifications for specific
EVENTIDs are text. The first character is 'c', 'f', 't', or 'w'
for check-in, forum, ticket, or wiki. The remaining text is a
integer that references the EVENT.OBJID value for the event.
Run /timeline?showid to see these OBJID values.
--backoffice Run alert_backoffice() after all alerts have
been added. This will cause the alerts to be
sent out with the SENDALERT_TRACE option.
--debug Like --backoffice, but add the SENDALERT_STDOUT
so that emails are printed to standard output
rather than being sent.
--digest Process emails using SENDALERT_DIGEST