rem: this.mPropsBoxObject.invalidate(); 
add: this.mPropsBoxObject.endUpdateBatch(); 
context:   cmdDeleteSelectedProperty: function()  {    var style = this.getSelectedRule().style;    var propname = this.getSelectedProp();    style.removeProperty(propname);    this.mPropsBoxObject.invalidate();  },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/945183763559d605a8b01e07ff0533f4da517ba7/styleRules.js/buggy/extensions/inspector/resources/content/viewers/styleRules/styleRules.js