rem: MsgSortThreadPane(nsMsgViewSortType.byThread); 
add: dbview.flags |= nsMsgViewFlagsType.kThreadedDisplay; MsgSortThreadPane(nsMsgViewSortType.byId); 
context: function MsgSortByThread(){  var dbview = GetDBView();  if(dbview && !dbview.supportsThreading)    return;  MsgSortThreadPane(nsMsgViewSortType.byThread);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/a300aa5c817838eff65c632f6a4e4ad921154c97/threadPane.js/buggy/mailnews/base/resources/content/threadPane.js