opting for test against undefined

Author: BSd3v

src/lib/fragments/AgGrid.react.js

@@ -782,7 +782,7 @@ export default class DashAgGrid extends Component {
         // Call the API to select rows unless the update was triggered by a selection made in the UI
         if (
             !equals(selectedRows, prevProps.selectedRows) &&
-            !(loading_state
+            !(loading_state !== undefined
                 ? loading_state && this.selectionEventFired
                 : this.selectionEventFired)
         ) {