add: if (!this.isCreated()) { return; };  
context: proto._onrowcreate = function(){  var q = this._rowCreateQueue;  var l = q.length-1;  if (l==-1) {    this._rowCreateTimer.stop();    return;  };  l = Math.min(this._perLoopRowCreateCount, l);  do{ this._fragment.appendChild(this._createRow(q.shift())); } while(l--);};
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/d0984a49e5708d61cfe1e6165e1e198760df5324/QxListView.js/buggy/qooxdoo/source/script/widgets/QxListView.js