The give way line on the side road has been pulled back from the physical edge of the road, so the intent is clearly that the cycle lane should continue on its line.
Other junctions on the same road have the give way line in the "normal" place at the edge of the road, in which case the driver would certainly have been required to give way to me, as I had already started to cross. The trouble with those ones is that, as the cycle lane is less than a car length from the give way line, you end up with cars stopped at the give way line blocking your path.
It is this problem that the junction in my clip has tried to address, badly.