rem: this.point.destroy(); 
add: this.polygon = null; 
context:     destroyFeature: function() {        this.polygon.destroy();        this.point.destroy();    },
meta: 1027	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1027/153b7a2a786016563a2d64418ccac0b1e48f21d4/Polygon.js/clean/lib/OpenLayers/Handler/Polygon.js