[FIX] account: fix PO line matching on XML bill

Steps to reproduce:
- Install Accounting and Purchase
- Install a localization that supports electronic invoice (e.g. l10n_it_edi)
- Switch to a company with that localization
- Go to Purchase and create a PO:
  * Vendor: Vendor X
  * Product: Product X
  * Unit Price: 50.00
- Create an electronic bill in XML format with:
  * a reference to PO name
  * the same partner than the PO
  * the same line than the PO, except for the price (e.g. 200.00)
- Go to "Accounting / Vendors / Bills"
- Upload the XML bill

Issue:
The bill is generated and linked to the PO, but the price and subtotal on
the bill line is the one coming from the PO instead of the one coming from
the XML.
Values coming from an imported XML should not be overridden by values found
in matching PO.

Cause:
"timeout" parameter is wrongly passed as "prefer_purchase_line" parameter in
a call to "_find_and_set_purchase_orders" method.

opw-3707731

closes odoo#159139

X-original-commit: fc6b71c
Signed-off-by: Claire Bretton (clbr) <clbr@odoo.com>
Signed-off-by: Anh Thao Pham (pta) <pta@odoo.com>

addons/account/models/account_move.py

@@ -3929,7 +3929,7 @@ def _find_and_set_purchase_orders(self, po_references, partner_id, amount_total,
     def _link_bill_origin_to_purchase_orders(self, timeout=10):
         for move in self.filtered(lambda m: m.move_type in self.get_purchase_types()):
             references = [move.invoice_origin] if move.invoice_origin else []
-            move._find_and_set_purchase_orders(references, move.partner_id.id, move.amount_total, timeout)
+            move._find_and_set_purchase_orders(references, move.partner_id.id, move.amount_total, timeout=timeout)
         return self
 
     # -------------------------------------------------------------------------