see also https://community.openstreetmap.org/t/individual-residential-landuse-for-each-house-or-street-good-or-bad/136497/10 and subsequent discussion about Osmose
building=yes inside landuse=plant_nursery
this report makes little sense, as storage buildings CAN be inside landuse=plant_nursery
see say https://osmose.openstreetmap.fr/en/map/#loc=18/50.092692/19.981955&level=1%2C2%2C3&item=1310
building=outbuilding inside landuse=plant_nursery
https://osmose.openstreetmap.fr/en/map/#loc=17/50.029389/20.131606&level=1%2C2%2C3&item=1310&issue_uuid=8ce3a227-a634-15cb-b625-2c8782061c01
at absolute minimum "how to fix" should reming people that in many cases building inside landuse=plant_nursery (or farmland) is in fact valid and they should use "mark as a false positive"