[out:xml][timeout:3600]; ( way(87501655)['wikidata'='Q28739239']['wikipedia'='de:Brandenburgisches Oberlandesgericht']; ); (._;>;); out meta qt;//['wikipedia wikidata mismatch']
[out:xml][timeout:3600]; ( way(389751252)['operator:wikidata'='Q2509662']['operator:wikipedia'='de:Vamed Rehabilitation']; ); (._;>;); out meta qt;//['wikipedia wikidata mismatch - for operator prefixed tags']
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.