[MERGE] forward port branch 10.0 up to 90c1af11

addons/bus/models/res_partner.py

addons/l10n_be_intrastat/wizard/xml_decl.py

addons/l10n_be_intrastat_2019/__init__.py

addons/l10n_be_intrastat_2019/__manifest__.py

...ns/l10n_be_intrastat_2019/i18n/l10n_be_intrastat_2019.pot

addons/l10n_be_intrastat_2019/models/__init__.py

...l10n_be_intrastat_2019/models/account_intrastat_report.py

addons/l10n_be_intrastat_2019/models/account_invoice_line.py

...10n_be_intrastat_2019/views/account_invoice_line_view.xml

addons/sale/models/sale.py

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

doc/cla/corporate/levelprime.md

odoo/addons/base/ir/ir_ui_view.py

odoo/addons/base/tests/test_views.py