[FIX] mrp: fix the uom conversion issue 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

opw-2849397

closes odoo/odoo#93035

X-original-commit: 83afc17890b9a7b41e21aa5db738b04a13680cd4
Signed-off-by: Arnold Moyaux (arm) <arm@odoo.com>

addons/mrp/tests/test_bom.py

@@ -428,6 +428,37 @@ class TestBoM(TestMrpCommon):
         kit_product_qty, _ = (self.product_2 + self.product_3).mapped("qty_available")  # With product_3 in the prefetch
         self.assertEqual(float_repr(float_round(kit_product_qty, precision_digits=precision.digits), precision_digits=precision.digits), '-384.00000')
 
+    def test_13_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.