When a product in a bundle has its price altered by some dynamic pricing rules, like for example discounts, it's not properly shown in product lists nor in the bundle add to cart form, although the rules are later applied to the price when the product is in the cart. This means that for those products the price the user sees differs from the real price they will end up paying for them.
Create a commerce bundle group. Then create a dynamic pricing rule that affects at least one of the product variants in at least one of the bundle items, for example using the Commerce Discount module. If that is the default product variant for the bundle item, in product lists the discount won't be applied to the total price and likewise, on the bundle add to cart form, when you select that variant the discount won't be applied either.
When available, use the commerce_product_calculate_sell_price() function to get the bundle product's price. Patch attached.
Active
1.0
Code
Attaching patch for all the possible cases: product group price is set, group item price is set, or none of them are set and the price of the product variant is used.
Thanks for the patch. Considering D7 EOL, I don't think there will be anymore commits or releases on this module.