B::Concise does not give sequence numbers to null ops even if they are part of the execution order. Ideally, there should be no null ops in the execution order to begin with, but, if it does happen, B::Concise is not helpful in debugging it. In fact, its output is quite confusing: 1 <;> nextstate(main 1 -e:1) v ->- How can an op in the execution chain be pointing to something not in the execution chain (the ->- at the end)? It has been working this way since c27ea44e678f. Would it be okay to change this?Thread Next