laanc 비행구역 저장버튼 disabled 에러 수정

src/components/laanc/map/LaancDrawControl.js

@@ -348,7 +348,15 @@ export const LaancDrawControl = props => {
     // props.handlerAddChange('isAddable', false);
     props.handlerAddChange('overAdd', false);
     handlerRemoveGroupMarker(id);
+
+    const remainObj = drawObj
+      .getAll()
+      .features.filter(o => o.properties.id !== 'BUFFER' && o.id !== id);
+    if (remainObj.length === 0) {
       props.handlerSaveCheck(false);
+    } else {
+      props.handlerSaveCheck(true);
+    }
 
     drawObj.delete(id);