switch to all fast path when it's known that all children match
switch to all fast path when it's known that all children match

mourner/rbush,josl/rbush,opentable/rbush,landonb/rbush,korczis/rbush,opentable/rbush,korczis/rbush,MazeMap/rbush,mourner/rbush,landonb/rbush,josl/rbush,MazeMap/rbush