Add changeset source tag (only on JOSM > 15323)

Signed-off-by: Taylor Smock <smocktaylor@gmail.com>

src/main/java/org/openstreetmap/josm/plugins/rapid/backend/RapiDLayer.java

@@ -23,4 +23,8 @@ public class RapiDLayer extends OsmDataLayer {
 		this.lock();
 	}
 
+	// @Override only JOSM > 15323
+	public String getChangesetSourceTag() {
+		return "MapWithAI";
+	}
 }