if carb_ratio is null buy we have a valid carb_ratios object, use that
if carb_ratio is null buy we have a valid carb_ratios object, use that

PieterGit/oref0,openaps/oref0,PieterGit/oref0,PieterGit/oref0,PieterGit/oref0,openaps/oref0,openaps/oref0,openaps/oref0