Hi,
if https://www.openstreetmap.org/way/1381433438 shall represent the "horse riding pitch" which you mentioned in your changeset comment, you should better tag it with leisure=pitch + sport=equestrian. The tag leisure=horse_riding is for complete  horse riding centres. Example: https://www.openstreetmap.org/way/1212039763/history#map=17/49.577892/-1.567478&layers=P

In JOSM you can use the preset for sport=equestrian.