laanc 비행구역 표출개수 에러 수정

src/components/map/mapbox/draw/LaancDrawControl.js

@@ -326,7 +326,10 @@ export const LaancDrawControl = props => {
 
     const obj = drawObj
       .getAll()
-      .features.filter(obj => obj.properties.id !== 'BUFFER');
+      .features.filter(
+        obj =>
+          obj.properties.id !== 'BUFFER' && obj.geometry.coordinates.length > 0
+      );
     props.setViewCoordObj(obj);
     if (obj.length > 1) {
       props.handlerAddChange('overAdd', true);