Revert the fix for issue #12505

Author: mddragnev

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

@@ -6515,8 +6515,6 @@ export abstract class IgxGridBaseDirective extends DisplayDensityBase implements
                 }
 
             });
-        } else if (event.origin === TransactionEventOrigin.CLEAR) {
-            this.validation.clear();
         }
 
         this.selectionService.clearHeaderCBState();

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

@@ -525,44 +525,6 @@ describe('IgxGrid - Validation #grid', () => {
             expect((grid.validation as any).getValidity().length).toEqual(0);
         });
 
-        it('should update validity when all transactions are cleared', () => {
-            const grid = fixture.componentInstance.grid as IgxGridComponent;
-            let cell = grid.gridAPI.get_cell_by_visible_index(1, 1);
-            let secondCell = grid.gridAPI.get_cell_by_visible_index(2, 1);
-
-            // update first cell
-            UIInteractions.simulateDoubleClickAndSelectEvent(cell.element);
-            cell.editMode = true;
-            cell.update('IG');
-            fixture.detectChanges();
-
-            grid.gridAPI.crudService.endEdit(true);
-            fixture.detectChanges();
-
-            GridFunctions.verifyCellValid(cell, false);
-
-            //update second cell
-            UIInteractions.simulateDoubleClickAndSelectEvent(secondCell.element);
-            secondCell.editMode = true;
-            secondCell.update('bob');
-            fixture.detectChanges();
-
-            grid.gridAPI.crudService.endEdit(true);
-            fixture.detectChanges();
-            GridFunctions.verifyCellValid(cell, false);
-            expect(grid.validation.getInvalid().length).toBe(2);
-
-
-            // clear transactions
-            grid.transactions.clear();
-            fixture.detectChanges();
-            expect(grid.validation.getInvalid().length).toBe(0);
-
-
-            grid.validation.clear();
-            fixture.detectChanges();
-        });
-
         it('should not show errors when the row is deleted', () => {
             const grid = fixture.componentInstance.grid as IgxGridComponent;
             let cell = grid.gridAPI.get_cell_by_visible_index(1, 1);