[MERGE] forward port branch saas-16 up to 82add438

addons/crm/models/crm_lead.py

addons/hr/models/mail_alias.py

addons/hr/models/mail_thread.py

addons/hr_expense/models/hr_expense.py

addons/hr_timesheet_attendance/models/hr_timesheet_sheet.py

addons/mail/controllers/bus.py

addons/mail/models/mail_activity.py

addons/mail/models/mail_alias.py

addons/mail/models/mail_message.py

addons/mail/models/mail_thread.py

addons/mail/models/res_partner.py

addons/mail/security/ir.model.access.csv

addons/mail/security/mail_security.xml

addons/web/static/src/js/fields/relational_fields.js

addons/web/static/src/js/services/data_manager.js

addons/web/static/src/js/views/basic/basic_model.js

addons/web/static/src/js/views/list/list_controller.js

addons/web/static/src/js/views/view_dialogs.js

addons/web/static/tests/fields/relational_fields_tests.js

addons/web/static/tests/helpers/mock_server.js