If u r filtering and any high vehicle that blocks ur vision to the left stops then u should stop also.....if u stay back a bit u can avoid the vehicle pulling out and he won't have to break.....there not nobs Darrsi just people pulling out of junctions because they have been let out. If u were to hit the vehicle in this scenario u would be liable.
Just flapping about on this stagnant little pond on the outer rim of the internet.....yup.... :-))