rem: if ((msgFolder.flags & flags) == 0) { 
add: if (!msgFolder || ((msgFolder.flags & flags) == 0)) { 
context: function IsSpecialFolder(msgFolder, flags){    if ((msgFolder.flags & flags) == 0) {        return false;    }    else {        return true;    }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/e5c378adfcc95f19a67e194a251749cb2649fba0/commandglue.js/buggy/mailnews/base/resources/content/commandglue.js