[FIX] sale_stock: product package

- Activate "Product Packagings" in the Sales Settings
- Define a package on a storable product with a contained Qty of 1.8
- Sell 5.4 units of this product in an SO and use the package.

A warning is raised.

This happens because 5.4 % 1.8 = 2.220446049250313e-16

opw-2228859

closes odoo/odoo#49026

Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/sale_stock/models/sale_order.py

@@ -310,7 +310,7 @@ class SaleOrderLine(models.Model):
         pack = self.product_packaging
         qty = self.product_uom_qty
         q = default_uom._compute_quantity(pack.qty, self.product_uom)
-        if qty and q and (qty % q):
+        if qty and q and round(qty % q, 2):
             newqty = qty - (qty % q) + q
             return {
                 'warning': {