- 2 new methods for reading either current/desired on hand/on demand
depending on variant state. Goal is to get rid of send method in View
- referring in on_hand/on_demand is in fact irrelevant. In the piece of
code, only desired on_hand/on_demand can be called as we are only in
new variant (non persisted) mode
- View does not use send method anymore, replaced by current_or_desired
- refactor of the spec -> 2 examples in one to get more speed.