rem: return msgfolder; 
add: if (msgfolder && ( msgfolder.parent || msgfolder.isServer)) return msgfolder; 
context: function GetMsgFolderFromUri(uri){	try {  	var RDF = Components.classes['@mozilla.org/rdf/rdf-service;1'].getService();  	RDF = RDF.QueryInterface(Components.interfaces.nsIRDFService);    var resource = RDF.GetResource(uri);		var msgfolder = resource.QueryInterface(Components.interfaces.nsIMsgFolder);		return msgfolder;	}//try	catch (ex) { }//catch	return null;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/25f7c83c8fbe93e8e296f7dffcaa28ea7ecdd290/MsgComposeCommands.js/clean/mailnews/compose/resources/content/MsgComposeCommands.js