Yeah, was just ahead myself.
However, there is inconsistency between MaxHP healing and Injuries: When resting we do it in multiples of hours. It's twice the healing rate per hour, right? But other stuff can last in minutes. Seems the game takes only completed hours within one action into account. So if healing rate is 1 and repair of an item takes 1 hour, will heal 1 MaxHP. However, if I will repair 8 items, but each takes under an hour, say 45 minutes - we won't recover any MaxHP points - despite the time advancing by 6 hours in total. Whereas, all those repairs decrease Injury healing time alright.