For the customer "Pricelist Controller" we have a "New Public Pricelist" created and saved as customers default.

Some users prefered this workflow:
Go to Sales > Quotations > Create > Select the customer "Pricelist Controller"
The Pricelist "New Public Pricelist" is choosen by default, that's right.

Other users work from the customer entry:
Go to Customers > Customer "Pricelist Controller" > Quotations and Sales > Create
The Pricelist "New Public Pricelist" shows up for a second and fall back to the original "Public Pricelist", that's false.

Also wrong on openerp 7 runbot http://73931-7-0-3d35a5.runbot6.odoo.com

Works fine on odoo 8 runbot http://73932-8-0-2948ed.runbot.odoo.com