Stopping in the middle of a lane change
I notice a habit of Vancouver drivers is that when they are turning right, and the right hand lane is used for parking and/or cycling, they will casually pull halfway into the right-hand lane and then stop (either for a red light, or to yield to a crosswalk).
Even the 3rd or 4th car in a lineup waiting to turn right will do this: stopping on the dashed line.
I know it is illegal to stop inside of an intersection. Is there any law, precedent, or authoritative safety recommendation about stopping in the middle of a lane change?