Steps to reproduce:
-------------------
* Enable "Master Production Schedule" in Inventory settings
* Create tracked Product "Child" and set up a vendor
* Create tracked Product "Parent" and set up a bom as component "Child" and Lead Time: 2 days
* Create tracked Product "GParent" and set up a bom as component "Parent" and Lead Time: 2 days
* Open MPS and add your three products:
  - Child, Parent: activate indirect demand
  - Parent: Safety Stock Target of 10
* Add 1 in the forecast demand for "Gparent" on third column -> Will have 20 Indirect Demand Forecast of Child in the first column and -9 on the second

Observation:
-------------
Usefull comment form the function :
https://github.com/odoo/enterprise/blob/b332af45a46b2295797a5096f68b7953554a495b/mrp_mps/models/mrp_mps.py#L424-L447

When creating a demand from the MPS, it will always take the first date of the interval (ex: Week 10 (2-8/Mar), it will create the demand for the 2 of Mars)
When calculating the production schedule. we wil we calculate each product for each date_range:
https://github.com/odoo/enterprise/blob/ea805995f66e007c0aef6b473a2b16dbe54d73bc/mrp_mps/models/mrp_mps.py#L488 https://github.com/odoo/enterprise/blob/ea805995f66e007c0aef6b473a2b16dbe54d73bc/mrp_mps/models/mrp_mps.py#L509

When calculating the values for a product, we will set the indirect demand qty for it component

The demand will created the demand in function of the date of when the parent need and the lead time (it will for the previous date range because of the lead time):
https://github.com/odoo/enterprise/blob/ea805995f66e007c0aef6b473a2b16dbe54d73bc/mrp_mps/models/mrp_mps.py#L554
https://github.com/odoo/enterprise/blob/ea805995f66e007c0aef6b473a2b16dbe54d73bc/mrp_mps/models/mrp_mps.py#L555

If the demand is not equal to the resplensih_qty we will create another demand to compensate, it will use the first date of range minus the lead time it will send it to the previous date range:
https://github.com/odoo/enterprise/blob/ea805995f66e007c0aef6b473a2b16dbe54d73bc/mrp_mps/models/mrp_mps.py#L556-L560

In our case this will create the issue, since it will try to compensate each time on the previous week.

opw-5413838

Forward-Port-Of: odoo/enterprise#112811
Forward-Port-Of: odoo/enterprise#107671

Currently, when the user creates a task for a customer with a discount pricelist, the discount is applied twice for the service.

<h2>Steps to produce:</h2>

* Install `industry_fsm_sale` and enable `Discounts` and `Pricelists` in settings.
* Create a pricelist with a price rule of type discount that applies 10 percent discount to every product.
* Go to Customers > Acme Corporation > Sales & Purchase and set the pricelist.
* Go to Field Service > Create a Task, and set `Customer` to Acme Corporation.
* Add a timesheet with Time Spent 1 > Mark the task as Done > Sale Order

<h2>Observed behavior:</h2>

The discount is applied twice to the product on SO:

**Product**: Service on Timesheets
**Unit Price**: `$40` (excluding tax)

**First discount:**
The 10 percent discount on the unit price of the product.
Product unit price is set from  `$40 -> $36
`

**Second discount:**
The 10 percent discount on the SO line itself.
`$36 -> $32.4
`

The untaxed amount is: `$32.40` which should be `$36.00`

<h2>Root cause:</h2>
This happens because, at line [1], the unit price is already set to the final price from the pricelist when the sale order line is created. Since discounts are enabled, [2] applies an additional discount to that same price, causing the discount to be applied twice.

<h2>Solution:</h2>

When creating the sales order:
* **Discount setting is on:** use list price so the discount is applied from the sales order.
* **Discount setting is off:** set the product unit price to the discounted price.

[1]-
https://github.com/odoo/enterprise/blob/224d2453cc975a3e333825370beaf30d27d89f10/industry_fsm_sale/models/project_task.py#L658 
[2]-
https://github.com/odoo/odoo/blob/76717e588bfd012b42e859bfc829257d899c6165/addons/sale/models/sale_order_line.py#L788

opw-5432088

Forward-Port-Of: odoo/enterprise#112761
Forward-Port-Of: odoo/enterprise#103950