Purpose of this task is to prevent users from setting portal users on internal documents by mistake, and preventing noise and performance issues resulting from loading all the portal users in those fields. This commit fixes internal many2x fields to res.users which are now restricted to internal users by setting domain (share=false) on form view. closes odoo/odoo#47553 Taskid: 2172779 Related: https://github.com/odoo/enterprise/pull/9204 Related: odoo/enterprise#9204 Closes: #47553 Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>