[FIX] calendar: alarm for past events
[FIX] calendar: alarm for past events

Before this commit, Odoo notifies the user of all the recurring past
events, existing before the installation of the module Calendar (old
events imported when synchronizing with Google, for instance). This
occurs only the first time a synchronization with Google is made. This
occurs because Odoo notify all the events that occurs since the last
time it notified, and the first time you install the module the date of
the last notification is empty.

Now, when the module Calendar is installed, the date of the last
notification is set by default to the current date (the date of the
installation of the module)

opw-1942443

closes odoo/odoo#32535

Signed-off-by: Nicolas Martinelli (nim) <771435c469f83f6aa9c405ac5e1ed06314a94f2d@odoo.com>
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo