before this commit, for the company_id field the user groups given was base.main_company, such a group is not existing in the system after this commit, the group will be changed to base.group_multi_company from base.main_company closes odoo/odoo#116939 X-original-commit: e259a33b0bff33005bc119838c517aec804695ae Related: odoo/enterprise#38942 Signed-off-by: Tiffany Chang <tic@odoo.com>