rem: if (!filterList) return; 
add: if (!filterList) return false; 
context: function getScopeFromFilterList(filterList){    if (!filterList) return;    var type = filterList.folder.server.type;    if (type == "nntp") return nsIMsgSearchValidityManager.news;	if (type == "pop3") return nsIMsgSearchValidityManager.offlineMail;    return nsIMsgSearchValidityManager.onlineMailFilter;}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/9cca7dd265f7509b95951b1586d117f975ed1891/FilterEditor.js/clean/mailnews/base/search/resources/content/FilterEditor.js