[11.0] analytic default using partner_id not work from Purchase Order

[celm1990]

Impacted versions:
V11 tested on runbot
Steps to reproduce:
This issue is related to #21401
1.- Create a default analytic for Vendor ASUSTeK:

2.- Create a Purchase Order for this Vendor and receive products

3.- Create Invoice for PO(directly from PO, or go to Menu Invoicing/Purchases/Documents/Vendor Bills)
a) Create invoice from PO(analityc Account is nothing)

b) Create invoice from Menu Invoicing/Purchases/Documents/Vendor Bills and select PO, invoice lines are create, but analityc Account is nothing

Current behavior:
Analytic Account is nothing, because is obtained from _set_additional_fields function and self.invoice_id.partner_id.id is nothing.
On this function first create invoice lines, after invoice lines are assigned to new invoice(before, at call function _set_additional_fields invoice_id is nothing)

Expected behavior:
When add lines manually, work fine because Analytic Account is get from onchange and self.invoice_id.partner_id is set

Video/Screenshot link (optional):

[Yenthe666]

@qdp-odoo this is one for you. Could you check?

[lap-odoo]

@celm1990 Thanks for the feedback. The module has not been built to work with purchase orders. However, I agree it would be interesting to have this feature. I've created a task in our backlog (60417) to improve this for future versions. Thanks