rem: }; }; }; 
add: } } } 
context: qx.Proto._updateLastColumn = function(){  if (this._indentObject)  {    var vElement = this._indentObject.getElement();    if (vElement && vElement.firstChild) {      vElement.firstChild.src = this.BASE_URI + this.getIndentSymbol(this.getTree().getUseTreeLines(), true) + ".gif";    };  };};
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