Tracking issue for list RA
This is the tracking issue for the list RA that went to staging in !654 (merged). A tracking issue is where we track and discuss what still needs to happen to make a module move to Iris proper.
- The laws of the list camera are kind of weird, because it's very awkward to deal with "holes" in the list, which typically occurs when separating ghost state.
- Is the list RA ever actually needed, or can we replace it by
map_seq? That deals better with "holes", but lacks some closure properties that can sometimes be useful.