add: this.selection.clearSelection(); 
context:   drop: function(newIndex, orientation) {    var sourceIndex = this.getSourceIndexFromDrag();    if (sourceIndex != -1) {      var sourceEngine = this._engineStore.engines[sourceIndex];      this._engineStore.moveEngine(sourceEngine, newIndex);      // Redraw, and adjust selection      this.invalidate();      this.selection.select(newIndex);    }  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/c4cf1c308cc02ede9d1e10891722a3a81e216dac/engineManager.js/buggy/browser/components/search/content/engineManager.js