What are the steps to reproduce your issue ?
1. Add a coupon program with the following condition sale_ok == True & name == 'Large Desk'
2. Add 'Buy 1 get 2 free' 'Large Cabinet'
3. Create a quotation with 1 Large Desk and 2 Large Cabinet
4. Add the coupon code
What is currently happening ?
Promotion will only remove one * Large Cabinet price instead of 2
What are you expecting to happen ?
Promotion remove two * Large Cabinet price
Why is this happening ?
The products quantity was mixed with the reward products quantity
opw-2496940
closesodoo/odoo#69671
X-original-commit: 5c4785212fce2c97047d97e96ccbbe32e3681f59
Signed-off-by: Achraf <abz-odoo@users.noreply.github.com>