Problem:
The calculation of the extra price for product variants is being applied twice:
- In the product model:
https://github.com/odoo/odoo/blob/b966f2acc15503eafdbc4bda0d7733adcd635208/addons/product/models/product_product.py#L283
- In the point of sale store:
https://github.com/odoo/odoo/blob/b966f2acc15503eafdbc4bda0d7733adcd635208/addons/point_of_sale/static/src/app/store/pos_store.js#L588-L595
https://github.com/odoo/odoo/blob/b966f2acc15503eafdbc4bda0d7733adcd635208/addons/point_of_sale/static/src/app/store/pos_store.js#L709-L717

In the case of a barcode-scanned product, the extra price is already included in the price, so we should avoid adding it again.

Steps to reproduce:

- Create a product with 2 variants, each having an extra price.
- Add a barcode to each variant.
- Open PoS and scan the barcode of any variant.
- The extra price is added twice.

opw-4177407

I confirm I have signed the CLA and read the PR guidelines at [www.odoo.com/submit-pr](http://www.odoo.com/submit-pr)

Currently, if you have a sale team related to a shop, making an order will not link the sale team to the order.

Steps to reproduce:
-------------------
* Go to the **Point of sale** App
* Go into settings
* Under **Sale team** select any team
* Open the related shop session
* Make an order
* Invoice it right after paying.
* Go to the **Accounting App**
* Select **Customer** then **Invoices**
* Select the related invoice
* Select the tab **Extra info**
> Observation: The sale team is not set.

Why the fix:
------------
When generating the invoice we are supposed to set the sale team with https://github.com/odoo/odoo/blob/ce73a1e19f19526b59bde9cebe2751102e2d8b27/addons/pos_sale/models/pos_order.py#L22

With `values` a dictionnary. In saas-17.4, the key `crm_team_id` is present in the dictionnary, but is `false`.

Since `setdefault` will not perform any change to a dictionnary if the key is already present inside, the value is not set with the `crm_team_id` from the config. We do not want to change this as `values['crm_team_id']=...` as it would systematically override the value and in the case when we settle an order we still want to use the sale team associated to that order.

Why is `values['crm_team_id']` false? Because the order in the shop has the field `crm_team_id` available but it's `undefined` because not loaded to the session.
https://github.com/odoo/odoo/blob/8dd35e194e54fd364100d57b32b8aff7b5ffec35/addons/point_of_sale/static/src/app/store/pos_store.js#L993-L995

What we do with this fix is to load the value of the sale team set in config to the shop and we set the value for every new order.

opw-4151736

A traceback occurs when the user uninstalls the sales module and tries to open any project.

To reproduce this issue:

1) Install sales, project
2) Uninstall sales
3) Try to open any project

Error:- 

```
KeyError: 'allow_billable'
```

This is because of the new embedded action introduced in the project module.

When the user uninstalls the sale module the embedded action record of the sale needs to be deleted.

https://github.com/odoo/odoo/blob/45e75693e8ee4f8cf9af842cd2facd4f2f6356d8/odoo/addons/base/models/ir_model.py#L2480-L2485

But an exception is raised because of the unlink method triggered during the uninstallation for embedded action and an exception is raised.

https://github.com/odoo/odoo/blob/45e75693e8ee4f8cf9af842cd2facd4f2f6356d8/odoo/addons/base/models/ir_embedded_actions.py#L90-L94

Due to this, the embedded action record is stored in the `undeletable_ids`.

Later it is removed from the `module_date` and the remaining module data is deleted.

https://github.com/odoo/odoo/blob/45e75693e8ee4f8cf9af842cd2facd4f2f6356d8/odoo/addons/base/models/ir_model.py#L2524-L2531

Finally, the embedded action of the sale module is not deleted and has a domain, 
which contains `allow_billable`. This leads to the above traceback.

sentry-5677055153