I found a potential bug in the new promotion feature.

Case:
- Several plans
- One "applies to all purchases" promotion using a fixed amount from cb_field
- One decimal wallet field
- one mysql field using the value of wallet field to customize the output

if the wallet field is visible on users profile, the promotion works.
if the wallet field is not visible on profile or only visible on a hidden tab, the promotion do not work!

My plan was to hide the wallet field and instead display the wallet using the mysql field (formatted output)

I also tried to put the Wallet in an Admin tab, but as long as the tab is not visible for the USER (who is not an Admin), the promotion doesn't work.