call resetFeature in addFeature to check whether or not a feature should be rendered on map or not for features' first time rendering

Author: yhy0217

src/map-feature.js

@@ -230,6 +230,8 @@ export class MapFeature extends HTMLElement {
           mapmlvectors.layerBounds = M.getBounds(this._layer._content);
           // update map's zoom limit
           this._map._addZoomLimit(mapmlvectors);
+          // TODO: can be set as a handler of featureLayer
+          mapmlvectors._resetFeatures();
           L.extend(mapmlvectors.options, mapmlvectors.zoomBounds);
         }
       }