[ODE] are force accumulators zeroed if body is disabled?

[David McClurg]

i'm lazy. does anyone know off hand about this?

  dBodyDisable (bodyID);
  dBodyAddForce (bodyID, fx, fy, fz);
  dWorldStep (worldID, stepsize);
  // should the force accumulators be set to zero after this integrator step for bodyID?
  dBodyEnable (bodyID);