When creating a Purchase Order with multi-step reception, the pickings
created by the push rules won't get confirmed as they should be (like in
the sales multi-step flow).
This creates issues further down with auto-batch as created pickings
don't get auto-batched even if the picking type is set to do it.
Task-2971346
X-original-commit: dc517bbe7ffbae8a8774f705c9431dce45c461ba
Part-of: odoo/odoo#102382
clesgow
93ed42f12e