Moving starting point of a route hangs Maps
When requesting a turn-by-turn route using just two points, start and finish. Trying to move the start point (after getting the initial route) hangs Maps.
This does not happen if you add an intermediary point, so it seems to only happen for when there's just two points in the route (and it still works to move the finishing point).
This also effects the 3.38 branch (but not 3.36, so there seems to be a regression there somewhere).