@@ -365,7 +365,7 @@ function make_webapp_vhost($id, $webapp)

 }

-function check_hostname_collision($hostname, $domain)

+function check_hostname_collision($hostname, $domain, $id=NULL)

 {

     $uid = (int) $_SESSION['userinfo']['uid'];

     # Neuer vhost => Prüfe Duplikat

@@ -387,7 +387,12 @@ function check_hostname_collision($hostname, $domain)

         $hostnamecheck = "hostname IS NULL";

         unset($args[":hostname"]);

     }

-    $result = db_query("SELECT id FROM vhosts.vhost WHERE {$hostnamecheck} AND {$domaincheck} AND user=:uid", $args);

+    $idcheck = '';

+    if ($id) {

+        $idcheck = ' AND id != :id';

+        $args[':id'] = (int) $id;

+    }

+    $result = db_query("SELECT id FROM vhosts.vhost WHERE {$hostnamecheck} AND {$domaincheck} AND user=:uid ".$idcheck, $args);

     if ($result->rowCount() > 0) {

         system_failure('Eine Konfiguration mit diesem Namen gibt es bereits.');

     }

@@ -395,6 +400,7 @@ function check_hostname_collision($hostname, $domain)

         return ;

     }

     unset($args[":uid"]);

+    unset($args[":id"]);

     $result = db_query("SELECT id, vhost FROM vhosts.v_alias WHERE {$hostnamecheck} AND {$domaincheck}", $args);

     if ($result->rowCount() > 0) {

         $data = $result->fetch();

@@ -419,6 +425,8 @@ function save_vhost($vhost)

     }

     if ($id == 0) {

         check_hostname_collision($vhost['hostname'], $vhost['domain_id']);

+    } else {

+        check_hostname_collision($vhost['hostname'], $vhost['domain_id'], $id);

     }

     $hsts = (int) $vhost['hsts'];

     if ($hsts < 0) {