rem: this.onVisualFootprintChanged(changeStart, delta); 
add: this.onVisualFootprintChanged(this.childData[0].calculateVisualRow(), delta); 
context: function tovr_appchild (children){    var changeStart = (this.childData.length > 0) ?        this.childData[this.childData.length - 1].calculateVisualRow() :        this.calculateVisualRow();    var idx = this.childData.length;    var delta = 0;    var len = children.length;    for (var i = 0; i <  len; ++i)    {        var child = children[i];        child.isHidden = false;        child.parentRecord = this;        this.childData[idx] = child;        child.childIndex = idx++;        delta += child.visualFootprint;    }        if ("isContainerOpen" in this && this.isContainerOpen)    {        if (this.calculateVisualRow() >= 0)        {            this.resort(true);  /* resort, don't invalidate.  we're going to do                                 * that in the onVisualFootprintChanged call. */        }        this.onVisualFootprintChanged(changeStart, delta);    }}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/2f092ff7a0b01b7428a3e3c48ed4121b7984c98a/tree-utils.js/buggy/extensions/venkman/resources/content/tree-utils.js