When user tries to empty start date or end date in website using editor, a traceback will appear. Steps to reproduce the error: - Install "website_event" - Go to Website > Events > Open any Event > Register > Edit - Now try to empty start date or end date > Save Error: A traceback appears: "TypeError:'<' not supported between instances of 'bool' and 'datetime.datetime'" https://github.com/odoo/odoo/blob/4759c6d1ee09c32381dc56c59c95949fd0e2807c/addons/event/models/event_event.py#L507 Here, When user tries to empty start date or end date, start date or end date will become "False", So it will lead to the above traceback. solution: A try-catch is used to catch typeerror at write of qweb fields. sentry-5038057541 closes odoo/odoo#161083 X-original-commit: c893ff16e277b46796a943c5532e01e8edf8958f Signed-off-by: David Monjoie (dmo) <dmo@odoo.com> Signed-off-by: Renilkumar Kajavadra (reka) <reka@odoo.com>