[product_supplierinfo_for_customer] couldn't add customer price in the product variant form view

[fanha99]

Module

product_supplierinfo_for_customer

Describe the bug

error while try to add a price for a product variant, which have the product_product_id is bigger than the last id of the product_template.

To Reproduce

Affected versions:
checked in 17.0

Steps to reproduce the behavior:

1. create 1 new product variant, make sure that the product_product_id is bigger than the last id of the product_template, save
2. in the Sales Tab, click to add a new line to define price for customer
3. the error popup appear.

Additional context
runboat oca/product-attribute 17.0 (a93bfdd) (could not try on the last one, the admin account don't have right to edit produce)