@SRD It's not just cycle lanes that they do this for. Twice on a five minute journey in the 44 bus between Duddingston Crossroads and Jock's Lodge this morning the bus had to stop in the bus lane because cars coming out of roads on the left were sitting with their noses a couple of feet into the bus lane.
For the first one, the bus driver sounded his horn. The driver was busy inspecting his unlit fag, so didn't seem to notice.
For the second, the bus driver chose what felt like an exaggerated turn out into the next lane and back again while the lady car driver just stared at the bus as it approached, slowed to a stop, then swung out. Not even the slightest thought of anything, let alone reversing, registered with her, going by her glazed expression.