Roundabouts - indicating right and going straight on

[spikep]

On a normal 4 entry roundabout, I’ve been seeing a tendency for cars to go in the nearside lane and indicate right and then left to leave on the second exit. I know lorries in France do this all the time as l see it on the back roads to Le Mans.

Is this an advanced driver taught thing or are they just trying to stop people moving to the side of them?