diff --git a/addons/base/static/src/js/chrome.js b/addons/base/static/src/js/chrome.js
index 590955fffab..85f92c7b572 100644
--- a/addons/base/static/src/js/chrome.js
+++ b/addons/base/static/src/js/chrome.js
@@ -234,6 +234,7 @@ openerp.base.BaseWidget = openerp.base.Controller.extend({
         if(this.$element != null) {
             this.$element.remove();
         }
+        this._super();
     }
 });
 
diff --git a/addons/base/static/src/js/controller.js b/addons/base/static/src/js/controller.js
index 54e876295f7..c9ca3193e70 100644
--- a/addons/base/static/src/js/controller.js
+++ b/addons/base/static/src/js/controller.js
@@ -202,8 +202,10 @@ instance.base.Controller = instance.base.Class.extend( /** @lends instance.base.
     stop: function() {
         if (this.parent && this.parent.children) {
             this.parent.children = _.without(this.parent.children, this);
+            this.parent.controller_children = this.parent.children;
         }
         this.parent = null;
+        this.controller_parent = null;
     },
     log: function() {
         var args = Array.prototype.slice.call(arguments);
diff --git a/addons/base/static/src/js/search.js b/addons/base/static/src/js/search.js
index 6607faa6a79..026f19db5b1 100644
--- a/addons/base/static/src/js/search.js
+++ b/addons/base/static/src/js/search.js
@@ -863,7 +863,9 @@ openerp.base.search.ExtendedSearch = openerp.base.BaseWidget.extend({
     },
     check_last_element: function() {
         _.each(this.children, function(x) {x.set_last_group(false);});
-        this.children[this.children.length - 1].set_last_group(true);
+        if (this.children.length >= 1) {
+            this.children[this.children.length - 1].set_last_group(true);
+        }
     }
 });