rem: this._endDrag(null, e); 
add:  if (!this._dragCache) { return; }  if (this._dragCache.dragHandlerActive) { this._endDrag(null, e); } else {  this._dragCache = null; } 
context: qx.Proto.cancelDrag = function(e) {  this._endDrag(null, e);}
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/08fb36201ab983adbc9ad03d5b2f9183de7abdb8/DragAndDropHandler.js/buggy/qooxdoo/frontend/framework/source/class/qx/event/handler/DragAndDropHandler.js