This changeset only cared to realign the polygon. This is routine maintenance work, as people using the online iD editor are often unaware of this when drawing.  No information was lost: 5 nodes were touched, with a move of respectively 3, 7, 25, 28, and 28 cm.
OSM mappers are fully aware that UrbIS geometries are sometimes wrong or outdated, and that is why these cases can be documented on the object themselves, if necessary.  That would prevent misunderstandings like here.