Since rev. odoo/odoo@cd05983 it was not possible to submit a survey if a date field was empty (trying to set `toJSON` on `null`). The datepicker `date` function returns `null` if no date has been selected. opw-1832381
Since rev. odoo/odoo@cd05983 it was not possible to submit a survey if a date field was empty (trying to set `toJSON` on `null`). The datepicker `date` function returns `null` if no date has been selected. opw-1832381