text: This might be caused in maps.me by the existence of http://www.openstreetmap.org/way/110639235 which has 
  building=train_station but no name.
  
  Mapping here is fairly complicated, in addition to that way we have:
  
  http://www.openstreetmap.org/node/670801913 which is 
  railway=station and name=S Ostkreuz
  
  http://www.openstreetmap.org/node/3936632577 which is 
  railway=station and name=Berlin Ostkreuz
  
  a lot of nodes with public_transport=stop_position, railway=stop, or both
  
  and finally http://www.openstreetmap.org/relation/1378772 which has name=S Ostkreuz and includes the above except for the way with building=train_station.
  
  Presumably maps.me thinks that the way with building=train_station as more important than nodes with railway=station?
  
  I don't know what the standards for mapping train station internals are...