Comment by drfloyd51

Thanks! My concern was that a resolver making decisions "to be helpful" could become surprising or frustrating.

For example, if you ask for edges to pass "between C and D", but those two nodes sit diagonally, the gap you are asking for might be the vertical channel or horizontal channel between them. So instead of guessing for you, it will tell you of the ambiguity and let you spell out what you want.