rem: if (this.uri == null) 
add: if (this.sessionUri == null) 
context:     getCommandUrl:    function( wcapCommand )    {        if (this.uri == null)            throw new Error("no URI!");        // ensure established session, so userId is set;        // (calId defaults to userId) if not set:        this.getSessionId();        return (this.uri.spec + wcapCommand + ".wcap?appid=mozilla-lightning");    },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/40e6de6cbc78e3358d220e43b48d2536ed0b5380/calWcapSession.js/buggy/calendar/providers/wcap/calWcapSession.js