Merge branch '20.0.x' into bpachilova/column-headers-a11y-15962

Author: ddaribo

projects/igniteui-angular/src/lib/grids/grid-base.directive.ts

@@ -6356,6 +6356,9 @@ export abstract class IgxGridBaseDirective implements GridType,
     // TODO: do not remove this, as it is used in rowEditTemplate, but mark is as internal and hidden
     /* blazorCSSuppress */
     public endEdit(commit = true, event?: Event): boolean {
+        if (!this.crudService.cellInEditMode && !this.crudService.rowInEditMode) {
+            return;
+        }
         const document = this.nativeElement?.getRootNode() as Document | ShadowRoot;
         const focusWithin = this.nativeElement?.contains(document.activeElement);
 

projects/igniteui-angular/src/lib/grids/grid/grid-cell-selection.spec.ts

@@ -84,6 +84,10 @@ describe('IgxGrid - Cell selection #grid', () => {
 
             UIInteractions.simulatePointerOverElementEvent('pointerup', endCell.nativeElement);
             detect();
+            // Invoke endEdit() to make sure if no editing is going on,
+            // the cell activation shouldn't be lost (https://infragistics.visualstudio.com/Indigo_Platform/_workitems/edit/37933)
+            grid.endEdit(true, null);
+            fix.detectChanges();
 
             expect(startCell.active).toBe(true);
             GridSelectionFunctions.verifyCellsRegionSelected(grid, 2, 3, 1, 0);