Usecase : create a bom in unit with a component tracked by serial and
quantity to produce = 1 unit
Create a manufacturing order with a UoM different that the bom one
(e.g. Production request = 1 dozen)
Launching the produce wizard or a workorder will show to the user
a workorder line with 12 component units to consume. But as the
component is tracked by serial. We would like to get 12 differents
lines of 1 unit. This commit take care of this specific case.