[FIX] mrp: fix uom conversion in bom kit

no need to make rounding during computing qty_available

STEPS (see the test):

* create product with uom dozens
* create product with uom units
* create bom kit to convert one to another
* set qty on hand to 1 for product dozens
* check qty for product units

BEFORE: qty=11
AFTER:  qty=12

---

opw-2632782

closes odoo/odoo#76242

X-original-commit: 26b28408d8970baa8cbf59ffaff90cab1e579410
Signed-off-by: Arnold Moyaux <amoyaux@users.noreply.github.com>

addons/mrp/models/product.py

@@ -185,7 +185,7 @@ class ProductProduct(models.Model):
                     # products have 0 qty available.
                     continue
                 uom_qty_per_kit = bom_line_data['qty'] / bom_line_data['original_qty']
-                qty_per_kit = bom_line.product_uom_id._compute_quantity(uom_qty_per_kit, bom_line.product_id.uom_id, raise_if_failure=False)
+                qty_per_kit = bom_line.product_uom_id._compute_quantity(uom_qty_per_kit, bom_line.product_id.uom_id, round=False, raise_if_failure=False)
                 if not qty_per_kit:
                     continue
                 component_res = qties.get(component.id, {

addons/mrp/tests/test_bom.py

@@ -359,6 +359,37 @@ class TestBoM(TestMrpCommon):
         kit_product_qty, _, _ = (self.product_7_3 + self.product_2 + self.product_3).mapped("qty_available")
         self.assertEqual(kit_product_qty, 2)
 
+    def test_14_bom_kit_qty_multi_uom(self):
+        uom_dozens = self.env.ref('uom.product_uom_dozen')
+        uom_unit = self.env.ref('uom.product_uom_unit')
+        product_unit = self.env['product.product'].create({
+            'name': 'Test units',
+            'type': 'product',
+            'uom_id': uom_unit.id,
+        })
+        product_dozens = self.env['product.product'].create({
+            'name': 'Test dozens',
+            'type': 'product',
+            'uom_id': uom_dozens.id,
+        })
+
+        self.env['mrp.bom'].create({
+            'product_tmpl_id': product_unit.product_tmpl_id.id,
+            'product_uom_id': self.uom_unit.id,
+            'product_qty': 1.0,
+            'type': 'phantom',
+            'bom_line_ids': [
+                (0, 0, {
+                    'product_id': product_dozens.id,
+                    'product_qty': 1,
+                    'product_uom_id': uom_unit.id,
+                })
+            ]
+        })
+        location = self.env.ref('stock.stock_location_stock')
+        self.env['stock.quant']._update_available_quantity(product_dozens, location, 1.0)
+        self.assertEqual(product_unit.qty_available, 12.0)
+
     def test_20_bom_report(self):
         """ Simulate a crumble receipt with mrp and open the bom structure
         report and check that data insde are correct.