perbaikan onchange select floor

src/app/content/hemat-app/monitoring/building/building.component.ts

@@ -78,6 +78,7 @@ export class BuildingComponent {
     if (e) {
       this.dataListFloor(e.id);
       this.disableFloorList = false;
+      this.floorSelected = null;
     } else {
       this.floorSelected = null;
       this.disableFloorList = true;