[out:xml][timeout:3600]; ( way(90547454)['wikidata'='Q18026863']['wikipedia'='de:Pfarrhaus (Simmerberg)']; ); (._;>;); out meta qt;//['wikipedia wikidata mismatch']
[out:xml][timeout:3600]; ( node(8264590157)['wikidata'='Q15841641']['wikipedia'='de:Rainhaus']; ); (._;>;); out meta qt;//['wikipedia wikidata mismatch - wikipedia points to disambiguation page and wikidata does not']
JOSM Wikipedia plugin
Note to self: online version hosted at https://matkoniecz.github.io/OSM-wikipedia-tag-validator-reports, files are stored at https://github.com/matkoniecz/OSM-wikipedia-tag-validator-reports.