[out:xml][timeout:3600]; ( node(11380787983)['brand:wikidata'='Q285328']['not:brand:wikidata'='Q285328']; ); (._;>;); out meta qt;//['wikipedia/wikidata type tag that is incorrect according to not:* tag']
[out:xml][timeout:3600]; ( node(11738094091)['operator:wikipedia'='https://en.wikipedia.org/wiki/Royal_Flying_Doctor_Service']; ); (._;>;); out meta qt;//['malformed secondary wikipedia tag - 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.