[IMP] purchase: allow matching on locked PO

This change allows for locked purchase orders to be matched with OCR

closes odoo/odoo#157569

Task: 3798080
X-original-commit: 59fe446aee1ee6d634aa286adc261a3c7f547d14
Signed-off-by: Louis Baudoux (lba) <lba@odoo.com>
Signed-off-by: Joris Makauskis (jmak) <jmak@odoo.com>

addons/purchase/models/account_invoice.py

@@ -315,7 +315,7 @@ class AccountMove(models.Model):
 
         common_domain = [
             ('company_id', '=', self.company_id.id),
-            ('state', '=', 'purchase'),
+            ('state', 'in', ('purchase', 'done')),
             ('invoice_status', 'in', ('to invoice', 'no'))
         ]