there were a bug were the currency exchange settings was never saved
DB: is a too tricky pattern that we'll drop in the future.
the problem with this is that we actually miss cases where a DB: should be triggered
ultimately an action should be atomic and each changes it affect should be saved without extra magic
for performance purpose we can just === check if things have actually changed and we can do this at many levels
in the future, we will try to reorganize things to allow this better, for instance splitting latest countervalues vs historical countervalues so you only save the latest more frequently..
Gaëtan Renaudeau
Loëck Vézien
meriadec