Before this commit, the compute method was not returning the value for the field karma_flag field, and thus it was returning compute method failed to assign value error. After this commit, the compute method will return correctly set the value for karma_flag field from the forum. closes odoo/odoo#116281 X-original-commit: odoo/odoo@bfa3f2d Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>