Incorrect price for selected variant shown

When the webshop (ecommerce component) has been set up for retail (B2C), with

• the tax setting 'Show prices with VAT tax included' set to 'Y' in store 9000
• the appropriat Tax Auth Geo and Tax Auth set in store 9000
• the flag 'Include Tax In Price' set to 'Y' for the Tax Auth

the price for a virtual product is shown including VAT.

However, for a selected variant the price shown is without VAT