chore(*): Fixing groupingExpansionState setter

Author: mpavlinov

projects/igniteui-angular/src/lib/grids/grid/grid.component.ts

@@ -333,7 +333,9 @@ export class IgxGridComponent extends IgxGridBaseComponent implements IGridDataB
     set groupingExpansionState(value) {
         this._groupingExpandState = cloneArray(value);
         this.groupingExpansionStateChange.emit(this._groupingExpandState);
-        this.notifyChanges();
+        if (this.gridAPI.grid) {
+            this.cdr.detectChanges();
+        }
     }
 
     /**