My last survey in that area was two months ago.  I don’t know if the situation changed since then.

A westbound car cannot turn left anymore—they installed big concrete blocks on the former left-turn lane—and there are signs making it illegal to turn left, and consequently to make a U-turn.  That’s the relation Jakka is referring to.

An eastbound car may make a U-turn here.  AFAIK, it is both physically and legally possible.  Therefore, a "U-turn in this place from west-east to east-west" seems to work fine.  GraphHopper routes this way.  If other routing engines cannot do it, that’s apparently not a data problem.