Fix issue in displaying filter form when managesieve_kolab_master=true

and sieve variables extension is supported by the server (#1489599)

plugins/managesieve/Changelog

@@ -2,6 +2,8 @@
 - Add Filters tab/section using plugin API hook
 - Fix issue where folder selector wasn't visible on new filter form
 - Fix issue where multi-select fields were not visible in new filter action rows (#1489600)
+- Fix issue in displaying filter form when managesieve_kolab_master=true
+  and sieve variables extension is supported by the server (#1489599)
 
 * version 7.1 [2013-11-22]
 -----------------------------------------------------------

plugins/managesieve/lib/Roundcube/rcube_sieve_script.php

@@ -585,6 +585,7 @@ class rcube_sieve_script
                     if ($rule[0]['type'] == 'set') {
                         unset($rule[0]['type']);
                         $this->vars[] = $rule[0];
+                        unset($rule);
                     }
                     else {
                         $rule = array('actions' => $rule);

plugins/managesieve/managesieve.js

@@ -226,7 +226,7 @@ rcube_webmail.prototype.managesieve_updatelist = function(action, o)
 
     // Delete filter row
     case 'del':
-      var i = 0, list = this.filters_list;
+      var id = o.id, list = this.filters_list;
 
       list.remove_row(this.managesieve_rowid(o.id));
       list.clear_selection();
@@ -241,8 +241,14 @@ rcube_webmail.prototype.managesieve_updatelist = function(action, o)
           return;
         }
 
-        // modify ID and remove all attached events
-        $(this).attr('id', 'rcmrow'+(i++)).unbind();
+        var rowid = this.id.substr(6);
+
+        // remove all attached events
+        $(this).unbind();
+
+        // update row id
+        if (rowid > id)
+          $(this).attr('id', 'rcmrow' + (rowid-1));
       });
       list.init();