I don't think that this question has been completely answered. The question is whether the rider should indicate and pass. If you are crossing the white line, broken or solid, indicate. If not, indicating is optional. I would teach to indicate, so as to warn anyone behind and approaching that you are going to alter your course.
If the vehicle is parked on the side of the road, does the additional minimum of 1 meter from the side of the vehicle place any part of the driver or motorcycle over the white line. If the answer is Yes, then indicating is required.