rem: m.mStartDate = this.mStartDate.clone(); m.mEndDate = this.mEndDate.clone(); m.mStampDate = this.mStampDate.clone(); 
add: if (this.mStartDate) m.mStartDate = this.mStartDate.clone(); if (this.mEndDate) m.mEndDate = this.mEndDate.clone(); if (this.mStampDate) m.mStampDate = this.mStampDate.clone(); 
context:     clone: function () {        var m = new calEvent();        this.cloneItemBaseInto(m);        m.mStartDate = this.mStartDate.clone();        m.mEndDate = this.mEndDate.clone();        m.mStampDate = this.mStampDate.clone();        return m;    },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/c9da6321d8883d46702090b1644c1656360b7233/calEvent.js/buggy/calendar/base/src/calEvent.js