Before this commit, the follwing traceback was sometimes raised.
Error message
ERROR: TestCalendar.test_event_creation_mail
Traceback (most recent call last):
File "/data/build/odoo/addons/calendar/tests/test_calendar.py", line 339, in test_event_creation_mail
m.write({
File "/data/build/odoo/addons/calendar/models/calendar_event.py", line 574, in write
self._rewrite_recurrence(values, time_values, recurrence_values)
File "/data/build/odoo/addons/calendar/models/calendar_event.py", line 1084, in _rewrite_recurrence
update_dict = self._get_time_update_dict(base_event, time_values)
File "/data/build/odoo/addons/calendar/models/calendar_event.py", line 993, in _get_time_update_dict
raise UserError(_("You can't update a recurrence without base event."))
odoo.exceptions.UserError: You can't update a recurrence without base event.
closesodoo/odoo#139486
X-original-commit: bd1c46a79ea3d41a374fac47dd16af802d18045d
Signed-off-by: Arnaud Joset (arj) <arj@odoo.com>