[FIX] mrp_subcontracting: Allow subcontractor contacts to be used

**Steps to reproduce:**

* Create a subcontractor.
* Create a BoM of type Subcontracting and assign the subcontractor.
* Create a children contact for the subcontractor.
* Creat a purchase order (or a receipt picking) with the children contact of the subcontractor.
* Confirm the document.

**Current behavior:**

Subcontractor documents are not created.

**Expected result:**

They should be created.

**Cause:**

The BoM search is not including possible parents of the partners.

**Solution:**

With the use of `parent_of` operator in the search, we cover both cases of the children
and the parent as initiators of the subcontracting.

closes odoo/odoo#46670

X-original-commit: 86726aba26f4ba8d7dadb29ed2415baf49fe54c0
Signed-off-by: Simon Lejeune (sle) <sle@openerp.com>

addons/mrp_subcontracting/models/mrp_bom.py

@@ -13,7 +13,7 @@ class MrpBom(models.Model):
     def _bom_subcontract_find(self, product_tmpl=None, product=None, picking_type=None, company_id=False, bom_type='subcontract', subcontractor=False):
         domain = self._bom_find_domain(product_tmpl=product_tmpl, product=product, picking_type=picking_type, company_id=company_id, bom_type=bom_type)
         if subcontractor:
-            domain = AND([domain, [('subcontractor_ids', 'in', subcontractor.id)]])
+            domain = AND([domain, [('subcontractor_ids', 'parent_of', subcontractor.ids)]])
             return self.search(domain, order='sequence, product_id', limit=1)
         else:
             return self.env['mrp.bom']

addons/mrp_subcontracting/tests/test_subcontracting.py

@@ -574,6 +574,28 @@ class TestSubcontractingFlows(TestMrpSubcontractingCommon):
         self.assertEqual(self.comp1.virtual_available, 0.0)
         self.assertEqual(self.comp1.virtual_available, 0.0)
 
+    def test_flow_10(self):
+        """Receipts from a children contact of a subcontractor are properly
+        handled.
+        """
+        # Create a children contact
+        subcontractor_contact = self.env['res.partner'].create({
+            'name': 'Test children subcontractor contact',
+            'parent_id': self.subcontractor_partner1.id,
+        })
+        # Create a receipt picking from the subcontractor
+        picking_form = Form(self.env['stock.picking'])
+        picking_form.picking_type_id = self.env.ref('stock.picking_type_in')
+        picking_form.partner_id = subcontractor_contact
+        with picking_form.move_ids_without_package.new() as move:
+            move.product_id = self.finished
+            move.product_uom_qty = 1
+        picking_receipt = picking_form.save()
+        picking_receipt.action_confirm()
+        # Check that a manufacturing order is created
+        mo = self.env['mrp.production'].search([('bom_id', '=', self.bom.id)])
+        self.assertEqual(len(mo), 1)
+
 
 class TestSubcontractingTracking(TransactionCase):
     def setUp(self):