Merge branch 'develop' of http://39.106.78.171:3000/shaojiahao/AX.Angular9DataCollection into develop

src/app/working-area/working-area.component.ts

@@ -173,7 +173,8 @@ export class WorkingAreaComponent extends EventEmitter implements OnInit, AfterV
               this.backgroundImage.removeChild(this.backgroundImage.getChildByName(item.assetData.Id));
               this.canvasData.isChange = true;
               break;
-          }
+            }
+            this.selection.deselectAll();
         }
         });
         this.emit('deleteIcon');