air: Update add/clear postremove for prerouted postremoves.
air: Update add/clear postremove for prerouted postremoves.

Wilee999/panda3d,Wilee999/panda3d,Wilee999/panda3d,Wilee999/panda3d,Wilee999/panda3d,Wilee999/panda3d,Wilee999/panda3d,Wilee999/panda3d,Wilee999/panda3d