add aid to notifiy table which we may need to supress duplicate notify emails across your channels

also try to handle the wretched mess of broken and duplicated hublocs that fred.cepheus.uberspace.de typically reports

install/database.sql

@@ -563,6 +563,7 @@ CREATE TABLE IF NOT EXISTS `notify` (
   `photo` char(255) NOT NULL,
   `date` datetime NOT NULL,
   `msg` mediumtext NOT NULL,
+  `aid` int(11) NOT NULL,
   `uid` int(11) NOT NULL,
   `link` char(255) NOT NULL,
   `parent` int(11) NOT NULL,
@@ -578,7 +579,8 @@ CREATE TABLE IF NOT EXISTS `notify` (
   KEY `hash` (`hash`),
   KEY `parent` (`parent`),
   KEY `link` (`link`),
-  KEY `otype` (`otype`)
+  KEY `otype` (`otype`),
+  KEY `aid` (`aid`)
 ) ENGINE=MyISAM  DEFAULT CHARSET=utf8;
 
 CREATE TABLE IF NOT EXISTS `obj` (