Due to a municipal merger, there are currently two entries (or something else by a different name) for Hohen Neuendorf in OpenStreetMap. The larger one represents the current municipality, while the smaller one corresponds to the former municipality. In such cases, if both the old and new municipalities are linked to Wikidata, a display error may occur in the map on the Wikipedia article for the municipality (I can provide an example later, if I’m able to find one).