Tests can fail when they are run at the moment when `fields.Date.today`
is different from `fields.Date.context_today`.
closesodoo/odoo#39079
X-original-commit: 0405f4a35bcad60fd99b1a05ffc8d9774e9a2829
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>