Create inline_conditions to find products on a commerece bundle line item

Hello,

I am trying to use coupon/discount on products which can be associated to bundles.
Here is the issue : I have a product A which is referenced by a bundle group A-G (price is not set so using A product price).
I created a percentage discount coupon on product A.
When adding A to the cart , I can redeem coupon correctly.
When adding bundle A-G composed with A to the cart, I cannot redeem coupon.

Once order is checked-out, admin can edit the order by adding coupon/discount to the backoffice page.
Once again on this page, On the order containing A added product , applying coupon/discount is OK.
But on the order containing A added through bundle A-G, applying coupon/discount fails.

Any idea ?
Thx