add: this.endUpdateBatch(); 
context:   undoTransaction: function ()  {    for (var i=this.item.length-1; i>=0; i--) {      if (this.isValid[i]) {        this.RDFC.Init(this.BMDS, this.parent[i]);        this.RDFC.RemoveElementAt(this.index[i], true);      }    }  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/da1d3f24d4e18696b0a03b143c18126d06413bb0/bookmarks.js/buggy/browser/components/bookmarks/content/bookmarks.js