When I add a product, like e.g. a table with a price of 100€.

The table has an attribute colour, that is a no-variant attribute. 

colour: white  (standard)  +0€,  Blue +70€, red +50€

If I then buy a blue table, the price is 170€. This is correct. 

But if I add a pricelist-rule (extra price)  at  the  product_template so when the customer buys more than 10 tables, the price of the table is 80€.

Then when I sell 11 blue tables the unit price should be 80€ + 70€ = 150€ But odoo sells these tables at 80€ so totally omitting the extra price of the blue colour.

To me this is not correct or can somebody explain me why this is a correct logic or what I am setting wrong.

Thank you