osmi/areas corrections: small corrections
osmi/areas corrections: correct polygon
osmi/areas corrections: close rings
osmi/areas corrections: correct roles
osmi/areas corrections: close ring
osmi/areas corrections: duplicate node
osmi/areas corrections: add details
osmi/areas corrections: split polygon; add details
small polygon corrections; slightly split the polygon
osmi/areas corrections: correct roles and memberships
osmi/areas corrections: remove useless polygon
osmi/areas corrections: correct roles
osmi/areas corrections: correct roles
osmi/areas corrections; improve details
osmi/areas corrections; add a building